Home / 103,429,282.70-155,143,924.05-90,674,698.70

Finding the Fourth Proportional to 103,429,282.70, 155,143,924.05 and 90,674,698.70

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Solution

The fourth proportional to 103,429,282.70, 155,143,924.05 and 90,674,698.70 is: 136,012,048.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,429,282.70 : 155,143,924.05 = 90,674,698.70 : x
  2. Step 2: Convert to fraction form
    103,429,282.70/155,143,924.05 = 90,674,698.70/x
  3. Step 3: Cross multiply
    103,429,282.70x = 155,143,924.05 × 90,674,698.70
  4. Step 4: Simplify right side
    103,429,282.70x = 14,067,628,568,369,436
  5. Step 5: Solve for x
    x = 14,067,628,568,369,436/103,429,282.70
  6. Step 6: Final answer
    x = 136,012,048.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.