Home / 124,654.31-172,036.49-76,906.43

Finding the Fourth Proportional to 124,654.31, 172,036.49 and 76,906.43

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Solution

The fourth proportional to 124,654.31, 172,036.49 and 76,906.43 is: 106,139.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,654.31 : 172,036.49 = 76,906.43 : x
  2. Step 2: Convert to fraction form
    124,654.31/172,036.49 = 76,906.43/x
  3. Step 3: Cross multiply
    124,654.31x = 172,036.49 × 76,906.43
  4. Step 4: Simplify right side
    124,654.31x = 13,230,711,030.92
  5. Step 5: Solve for x
    x = 13,230,711,030.92/124,654.31
  6. Step 6: Final answer
    x = 106,139.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.