Home / 124,935.72-172,412.65-68,345.88

Finding the Fourth Proportional to 124,935.72, 172,412.65 and 68,345.88

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Solution

The fourth proportional to 124,935.72, 172,412.65 and 68,345.88 is: 94,318.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,935.72 : 172,412.65 = 68,345.88 : x
  2. Step 2: Convert to fraction form
    124,935.72/172,412.65 = 68,345.88/x
  3. Step 3: Cross multiply
    124,935.72x = 172,412.65 × 68,345.88
  4. Step 4: Simplify right side
    124,935.72x = 11,783,694,287.38
  5. Step 5: Solve for x
    x = 11,783,694,287.38/124,935.72
  6. Step 6: Final answer
    x = 94,318.06

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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.