Home / 146,738.76-220,139.70-45,534.72

Finding the Fourth Proportional to 146,738.76, 220,139.70 and 45,534.72

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Solution

The fourth proportional to 146,738.76, 220,139.70 and 45,534.72 is: 68,311.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,738.76 : 220,139.70 = 45,534.72 : x
  2. Step 2: Convert to fraction form
    146,738.76/220,139.70 = 45,534.72/x
  3. Step 3: Cross multiply
    146,738.76x = 220,139.70 × 45,534.72
  4. Step 4: Simplify right side
    146,738.76x = 10,023,999,600.38
  5. Step 5: Solve for x
    x = 10,023,999,600.38/146,738.76
  6. Step 6: Final answer
    x = 68,311.87

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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.