Home / 125,124.48-172,665-71,414.52

Finding the Fourth Proportional to 125,124.48, 172,665 and 71,414.52

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Solution

The fourth proportional to 125,124.48, 172,665 and 71,414.52 is: 98,548.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,124.48 : 172,665 = 71,414.52 : x
  2. Step 2: Convert to fraction form
    125,124.48/172,665 = 71,414.52/x
  3. Step 3: Cross multiply
    125,124.48x = 172,665 × 71,414.52
  4. Step 4: Simplify right side
    125,124.48x = 12,330,788,095.80
  5. Step 5: Solve for x
    x = 12,330,788,095.80/125,124.48
  6. Step 6: Final answer
    x = 98,548.17

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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.