Home / 156,354.59-215,769.30-84,734.61

Finding the Fourth Proportional to 156,354.59, 215,769.30 and 84,734.61

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Solution

The fourth proportional to 156,354.59, 215,769.30 and 84,734.61 is: 116,933.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,354.59 : 215,769.30 = 84,734.61 : x
  2. Step 2: Convert to fraction form
    156,354.59/215,769.30 = 84,734.61/x
  3. Step 3: Cross multiply
    156,354.59x = 215,769.30 × 84,734.61
  4. Step 4: Simplify right side
    156,354.59x = 18,283,126,835.22
  5. Step 5: Solve for x
    x = 18,283,126,835.22/156,354.59
  6. Step 6: Final answer
    x = 116,933.74

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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.