Home / 103,429,284.20-155,143,926.30-90,674,700.20

Finding the Fourth Proportional to 103,429,284.20, 155,143,926.30 and 90,674,700.20

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Solution

The fourth proportional to 103,429,284.20, 155,143,926.30 and 90,674,700.20 is: 136,012,050.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,429,284.20 : 155,143,926.30 = 90,674,700.20 : x
  2. Step 2: Convert to fraction form
    103,429,284.20/155,143,926.30 = 90,674,700.20/x
  3. Step 3: Cross multiply
    103,429,284.20x = 155,143,926.30 × 90,674,700.20
  4. Step 4: Simplify right side
    103,429,284.20x = 14,067,629,005,103,396
  5. Step 5: Solve for x
    x = 14,067,629,005,103,396/103,429,284.20
  6. Step 6: Final answer
    x = 136,012,050.30

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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.