Home / 156,442.39-215,889.19-88,472.71

Finding the Fourth Proportional to 156,442.39, 215,889.19 and 88,472.71

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Solution

The fourth proportional to 156,442.39, 215,889.19 and 88,472.71 is: 122,091.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,442.39 : 215,889.19 = 88,472.71 : x
  2. Step 2: Convert to fraction form
    156,442.39/215,889.19 = 88,472.71/x
  3. Step 3: Cross multiply
    156,442.39x = 215,889.19 × 88,472.71
  4. Step 4: Simplify right side
    156,442.39x = 19,100,301,699.00
  5. Step 5: Solve for x
    x = 19,100,301,699.00/156,442.39
  6. Step 6: Final answer
    x = 122,091.60

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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.