Home / 131,123.70-196,685.55-56,231.10

Finding the Fourth Proportional to 131,123.70, 196,685.55 and 56,231.10

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Solution

The fourth proportional to 131,123.70, 196,685.55 and 56,231.10 is: 84,346.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,123.70 : 196,685.55 = 56,231.10 : x
  2. Step 2: Convert to fraction form
    131,123.70/196,685.55 = 56,231.10/x
  3. Step 3: Cross multiply
    131,123.70x = 196,685.55 × 56,231.10
  4. Step 4: Simplify right side
    131,123.70x = 11,059,844,830.61
  5. Step 5: Solve for x
    x = 11,059,844,830.61/131,123.70
  6. Step 6: Final answer
    x = 84,346.65

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Similar ratio
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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.