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Finding the Fourth Proportional to 147,223.68, 220,856.17 and 72,346.77

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Solution

The fourth proportional to 147,223.68, 220,856.17 and 72,346.77 is: 108,530.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,223.68 : 220,856.17 = 72,346.77 : x
  2. Step 2: Convert to fraction form
    147,223.68/220,856.17 = 72,346.77/x
  3. Step 3: Cross multiply
    147,223.68x = 220,856.17 × 72,346.77
  4. Step 4: Simplify right side
    147,223.68x = 15,978,230,488.85
  5. Step 5: Solve for x
    x = 15,978,230,488.85/147,223.68
  6. Step 6: Final answer
    x = 108,530.31

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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.