Home / 125,154.12-172,713.30-68,565.52

Finding the Fourth Proportional to 125,154.12, 172,713.30 and 68,565.52

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Solution

The fourth proportional to 125,154.12, 172,713.30 and 68,565.52 is: 94,620.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,154.12 : 172,713.30 = 68,565.52 : x
  2. Step 2: Convert to fraction form
    125,154.12/172,713.30 = 68,565.52/x
  3. Step 3: Cross multiply
    125,154.12x = 172,713.30 × 68,565.52
  4. Step 4: Simplify right side
    125,154.12x = 11,842,177,225.42
  5. Step 5: Solve for x
    x = 11,842,177,225.42/125,154.12
  6. Step 6: Final answer
    x = 94,620.75

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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.