Home / 156,255.72-215,573.40-115,517.70

Finding the Fourth Proportional to 156,255.72, 215,573.40 and 115,517.70

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Solution

The fourth proportional to 156,255.72, 215,573.40 and 115,517.70 is: 159,370.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,255.72 : 215,573.40 = 115,517.70 : x
  2. Step 2: Convert to fraction form
    156,255.72/215,573.40 = 115,517.70/x
  3. Step 3: Cross multiply
    156,255.72x = 215,573.40 × 115,517.70
  4. Step 4: Simplify right side
    156,255.72x = 24,902,543,349.18
  5. Step 5: Solve for x
    x = 24,902,543,349.18/156,255.72
  6. Step 6: Final answer
    x = 159,370.44

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1.5x scale

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.