Home / 124,727.04-172,123.92-68,139.36

Finding the Fourth Proportional to 124,727.04, 172,123.92 and 68,139.36

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Solution

The fourth proportional to 124,727.04, 172,123.92 and 68,139.36 is: 94,032.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,727.04 : 172,123.92 = 68,139.36 : x
  2. Step 2: Convert to fraction form
    124,727.04/172,123.92 = 68,139.36/x
  3. Step 3: Cross multiply
    124,727.04x = 172,123.92 × 68,139.36
  4. Step 4: Simplify right side
    124,727.04x = 11,728,413,749.49
  5. Step 5: Solve for x
    x = 11,728,413,749.49/124,727.04
  6. Step 6: Final answer
    x = 94,032.65

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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.