Home / 124,921.68-187,382.76-31,426.80

Finding the Fourth Proportional to 124,921.68, 187,382.76 and 31,426.80

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Solution

The fourth proportional to 124,921.68, 187,382.76 and 31,426.80 is: 47,140.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,921.68 : 187,382.76 = 31,426.80 : x
  2. Step 2: Convert to fraction form
    124,921.68/187,382.76 = 31,426.80/x
  3. Step 3: Cross multiply
    124,921.68x = 187,382.76 × 31,426.80
  4. Step 4: Simplify right side
    124,921.68x = 5,888,840,521.97
  5. Step 5: Solve for x
    x = 5,888,840,521.97/124,921.68
  6. Step 6: Final answer
    x = 47,140.26

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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.