Home / 156,778.88-216,348.72-93,115.04

Finding the Fourth Proportional to 156,778.88, 216,348.72 and 93,115.04

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Solution

The fourth proportional to 156,778.88, 216,348.72 and 93,115.04 is: 128,495.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,778.88 : 216,348.72 = 93,115.04 : x
  2. Step 2: Convert to fraction form
    156,778.88/216,348.72 = 93,115.04/x
  3. Step 3: Cross multiply
    156,778.88x = 216,348.72 × 93,115.04
  4. Step 4: Simplify right side
    156,778.88x = 20,145,319,716.75
  5. Step 5: Solve for x
    x = 20,145,319,716.75/156,778.88
  6. Step 6: Final answer
    x = 128,495.11

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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.