Home / 156,287.35-215,663.71-88,310.22

Finding the Fourth Proportional to 156,287.35, 215,663.71 and 88,310.22

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Solution

The fourth proportional to 156,287.35, 215,663.71 and 88,310.22 is: 121,860.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,287.35 : 215,663.71 = 88,310.22 : x
  2. Step 2: Convert to fraction form
    156,287.35/215,663.71 = 88,310.22/x
  3. Step 3: Cross multiply
    156,287.35x = 215,663.71 × 88,310.22
  4. Step 4: Simplify right side
    156,287.35x = 19,045,309,676.12
  5. Step 5: Solve for x
    x = 19,045,309,676.12/156,287.35
  6. Step 6: Final answer
    x = 121,860.85

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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.