Home / 156,351.88-215,764.68-84,731.86

Finding the Fourth Proportional to 156,351.88, 215,764.68 and 84,731.86

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Solution

The fourth proportional to 156,351.88, 215,764.68 and 84,731.86 is: 116,929.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,351.88 : 215,764.68 = 84,731.86 : x
  2. Step 2: Convert to fraction form
    156,351.88/215,764.68 = 84,731.86/x
  3. Step 3: Cross multiply
    156,351.88x = 215,764.68 × 84,731.86
  4. Step 4: Simplify right side
    156,351.88x = 18,282,142,658.70
  5. Step 5: Solve for x
    x = 18,282,142,658.70/156,351.88
  6. Step 6: Final answer
    x = 116,929.47

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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.