Home / 124,929.14-172,411.56-71,215.42

Finding the Fourth Proportional to 124,929.14, 172,411.56 and 71,215.42

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Solution

The fourth proportional to 124,929.14, 172,411.56 and 71,215.42 is: 98,282.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,929.14 : 172,411.56 = 71,215.42 : x
  2. Step 2: Convert to fraction form
    124,929.14/172,411.56 = 71,215.42/x
  3. Step 3: Cross multiply
    124,929.14x = 172,411.56 × 71,215.42
  4. Step 4: Simplify right side
    124,929.14x = 12,278,361,658.26
  5. Step 5: Solve for x
    x = 12,278,361,658.26/124,929.14
  6. Step 6: Final answer
    x = 98,282.61

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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.