Home / 124,728.59-172,121.60-71,021.27

Finding the Fourth Proportional to 124,728.59, 172,121.60 and 71,021.27

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Solution

The fourth proportional to 124,728.59, 172,121.60 and 71,021.27 is: 98,007.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,728.59 : 172,121.60 = 71,021.27 : x
  2. Step 2: Convert to fraction form
    124,728.59/172,121.60 = 71,021.27/x
  3. Step 3: Cross multiply
    124,728.59x = 172,121.60 × 71,021.27
  4. Step 4: Simplify right side
    124,728.59x = 12,224,293,943.38
  5. Step 5: Solve for x
    x = 12,224,293,943.38/124,728.59
  6. Step 6: Final answer
    x = 98,007.16

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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.