Home / 156,346.04-215,695.90-101,961.56

Finding the Fourth Proportional to 156,346.04, 215,695.90 and 101,961.56

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Solution

The fourth proportional to 156,346.04, 215,695.90 and 101,961.56 is: 140,666.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,346.04 : 215,695.90 = 101,961.56 : x
  2. Step 2: Convert to fraction form
    156,346.04/215,695.90 = 101,961.56/x
  3. Step 3: Cross multiply
    156,346.04x = 215,695.90 × 101,961.56
  4. Step 4: Simplify right side
    156,346.04x = 21,992,691,116.30
  5. Step 5: Solve for x
    x = 21,992,691,116.30/156,346.04
  6. Step 6: Final answer
    x = 140,666.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.