Home / 156,879.52-216,512.16-93,217.36

Finding the Fourth Proportional to 156,879.52, 216,512.16 and 93,217.36

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Solution

The fourth proportional to 156,879.52, 216,512.16 and 93,217.36 is: 128,650.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,879.52 : 216,512.16 = 93,217.36 : x
  2. Step 2: Convert to fraction form
    156,879.52/216,512.16 = 93,217.36/x
  3. Step 3: Cross multiply
    156,879.52x = 216,512.16 × 93,217.36
  4. Step 4: Simplify right side
    156,879.52x = 20,182,691,963.10
  5. Step 5: Solve for x
    x = 20,182,691,963.10/156,879.52
  6. Step 6: Final answer
    x = 128,650.90

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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.