Home / 124,887.60-187,331.40-75,121.20

Finding the Fourth Proportional to 124,887.60, 187,331.40 and 75,121.20

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Solution

The fourth proportional to 124,887.60, 187,331.40 and 75,121.20 is: 112,681.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,887.60 : 187,331.40 = 75,121.20 : x
  2. Step 2: Convert to fraction form
    124,887.60/187,331.40 = 75,121.20/x
  3. Step 3: Cross multiply
    124,887.60x = 187,331.40 × 75,121.20
  4. Step 4: Simplify right side
    124,887.60x = 14,072,559,565.68
  5. Step 5: Solve for x
    x = 14,072,559,565.68/124,887.60
  6. Step 6: Final answer
    x = 112,681.80

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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.