Home / 124,731.60-187,097.40-74,965.20

Finding the Fourth Proportional to 124,731.60, 187,097.40 and 74,965.20

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Solution

The fourth proportional to 124,731.60, 187,097.40 and 74,965.20 is: 112,447.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,731.60 : 187,097.40 = 74,965.20 : x
  2. Step 2: Convert to fraction form
    124,731.60/187,097.40 = 74,965.20/x
  3. Step 3: Cross multiply
    124,731.60x = 187,097.40 × 74,965.20
  4. Step 4: Simplify right side
    124,731.60x = 14,025,794,010.48
  5. Step 5: Solve for x
    x = 14,025,794,010.48/124,731.60
  6. Step 6: Final answer
    x = 112,447.80

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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.