Home / 156,311.28-215,708.16-92,679.24

Finding the Fourth Proportional to 156,311.28, 215,708.16 and 92,679.24

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Solution

The fourth proportional to 156,311.28, 215,708.16 and 92,679.24 is: 127,896.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,311.28 : 215,708.16 = 92,679.24 : x
  2. Step 2: Convert to fraction form
    156,311.28/215,708.16 = 92,679.24/x
  3. Step 3: Cross multiply
    156,311.28x = 215,708.16 × 92,679.24
  4. Step 4: Simplify right side
    156,311.28x = 19,991,668,330.60
  5. Step 5: Solve for x
    x = 19,991,668,330.60/156,311.28
  6. Step 6: Final answer
    x = 127,896.52

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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.