Home / 125,282.71-172,886.52-71,566.66

Finding the Fourth Proportional to 125,282.71, 172,886.52 and 71,566.66

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Solution

The fourth proportional to 125,282.71, 172,886.52 and 71,566.66 is: 98,759.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,282.71 : 172,886.52 = 71,566.66 : x
  2. Step 2: Convert to fraction form
    125,282.71/172,886.52 = 71,566.66/x
  3. Step 3: Cross multiply
    125,282.71x = 172,886.52 × 71,566.66
  4. Step 4: Simplify right side
    125,282.71x = 12,372,910,795.42
  5. Step 5: Solve for x
    x = 12,372,910,795.42/125,282.71
  6. Step 6: Final answer
    x = 98,759.92

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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.