Home / 125,148.80-172,705.92-68,560

Finding the Fourth Proportional to 125,148.80, 172,705.92 and 68,560

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Solution

The fourth proportional to 125,148.80, 172,705.92 and 68,560 is: 94,613.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,148.80 : 172,705.92 = 68,560 : x
  2. Step 2: Convert to fraction form
    125,148.80/172,705.92 = 68,560/x
  3. Step 3: Cross multiply
    125,148.80x = 172,705.92 × 68,560
  4. Step 4: Simplify right side
    125,148.80x = 11,840,717,875.20
  5. Step 5: Solve for x
    x = 11,840,717,875.20/125,148.80
  6. Step 6: Final answer
    x = 94,613.12

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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.