Home / 91,727,448.60-137,591,172.90-74,508,760.20

Finding the Fourth Proportional to 91,727,448.60, 137,591,172.90 and 74,508,760.20

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Solution

The fourth proportional to 91,727,448.60, 137,591,172.90 and 74,508,760.20 is: 111,763,140.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,727,448.60 : 137,591,172.90 = 74,508,760.20 : x
  2. Step 2: Convert to fraction form
    91,727,448.60/137,591,172.90 = 74,508,760.20/x
  3. Step 3: Cross multiply
    91,727,448.60x = 137,591,172.90 × 74,508,760.20
  4. Step 4: Simplify right side
    91,727,448.60x = 10,251,747,707,242,840
  5. Step 5: Solve for x
    x = 10,251,747,707,242,840/91,727,448.60
  6. Step 6: Final answer
    x = 111,763,140.30

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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.