Home / 124,828.25-172,278.97-71,132.54

Finding the Fourth Proportional to 124,828.25, 172,278.97 and 71,132.54

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Solution

The fourth proportional to 124,828.25, 172,278.97 and 71,132.54 is: 98,172.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,828.25 : 172,278.97 = 71,132.54 : x
  2. Step 2: Convert to fraction form
    124,828.25/172,278.97 = 71,132.54/x
  3. Step 3: Cross multiply
    124,828.25x = 172,278.97 × 71,132.54
  4. Step 4: Simplify right side
    124,828.25x = 12,254,639,685.46
  5. Step 5: Solve for x
    x = 12,254,639,685.46/124,828.25
  6. Step 6: Final answer
    x = 98,172.01

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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.