Home / 125,348.14-172,989.93-71,635.42

Finding the Fourth Proportional to 125,348.14, 172,989.93 and 71,635.42

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Solution

The fourth proportional to 125,348.14, 172,989.93 and 71,635.42 is: 98,862.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,348.14 : 172,989.93 = 71,635.42 : x
  2. Step 2: Convert to fraction form
    125,348.14/172,989.93 = 71,635.42/x
  3. Step 3: Cross multiply
    125,348.14x = 172,989.93 × 71,635.42
  4. Step 4: Simplify right side
    125,348.14x = 12,392,206,291.32
  5. Step 5: Solve for x
    x = 12,392,206,291.32/125,348.14
  6. Step 6: Final answer
    x = 98,862.31

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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.