Home / 120,463.40-180,680.75-31,723.83

Finding the Fourth Proportional to 120,463.40, 180,680.75 and 31,723.83

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Solution

The fourth proportional to 120,463.40, 180,680.75 and 31,723.83 is: 47,581.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,463.40 : 180,680.75 = 31,723.83 : x
  2. Step 2: Convert to fraction form
    120,463.40/180,680.75 = 31,723.83/x
  3. Step 3: Cross multiply
    120,463.40x = 180,680.75 × 31,723.83
  4. Step 4: Simplify right side
    120,463.40x = 5,731,884,938.68
  5. Step 5: Solve for x
    x = 5,731,884,938.68/120,463.40
  6. Step 6: Final answer
    x = 47,581.96

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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.