Home / 125,225.98-172,812.35-67,865.42

Finding the Fourth Proportional to 125,225.98, 172,812.35 and 67,865.42

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Solution

The fourth proportional to 125,225.98, 172,812.35 and 67,865.42 is: 93,654.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,225.98 : 172,812.35 = 67,865.42 : x
  2. Step 2: Convert to fraction form
    125,225.98/172,812.35 = 67,865.42/x
  3. Step 3: Cross multiply
    125,225.98x = 172,812.35 × 67,865.42
  4. Step 4: Simplify right side
    125,225.98x = 11,727,982,713.94
  5. Step 5: Solve for x
    x = 11,727,982,713.94/125,225.98
  6. Step 6: Final answer
    x = 93,654.55

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1.5x scale

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.