Home / 103,429,281.70-155,143,922.55-90,674,697.70

Finding the Fourth Proportional to 103,429,281.70, 155,143,922.55 and 90,674,697.70

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Solution

The fourth proportional to 103,429,281.70, 155,143,922.55 and 90,674,697.70 is: 136,012,046.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,429,281.70 : 155,143,922.55 = 90,674,697.70 : x
  2. Step 2: Convert to fraction form
    103,429,281.70/155,143,922.55 = 90,674,697.70/x
  3. Step 3: Cross multiply
    103,429,281.70x = 155,143,922.55 × 90,674,697.70
  4. Step 4: Simplify right side
    103,429,281.70x = 14,067,628,277,213,464
  5. Step 5: Solve for x
    x = 14,067,628,277,213,464/103,429,281.70
  6. Step 6: Final answer
    x = 136,012,046.55

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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.