Home / 125,011.78-187,517.67-54,891.70

Finding the Fourth Proportional to 125,011.78, 187,517.67 and 54,891.70

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Solution

The fourth proportional to 125,011.78, 187,517.67 and 54,891.70 is: 82,337.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,011.78 : 187,517.67 = 54,891.70 : x
  2. Step 2: Convert to fraction form
    125,011.78/187,517.67 = 54,891.70/x
  3. Step 3: Cross multiply
    125,011.78x = 187,517.67 × 54,891.70
  4. Step 4: Simplify right side
    125,011.78x = 10,293,163,686.34
  5. Step 5: Solve for x
    x = 10,293,163,686.34/125,011.78
  6. Step 6: Final answer
    x = 82,337.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.