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Finding the Fourth Proportional to 96,358.20, 144,450.90 and 85,860.60

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Solution

The fourth proportional to 96,358.20, 144,450.90 and 85,860.60 is: 128,713.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,358.20 : 144,450.90 = 85,860.60 : x
  2. Step 2: Convert to fraction form
    96,358.20/144,450.90 = 85,860.60/x
  3. Step 3: Cross multiply
    96,358.20x = 144,450.90 × 85,860.60
  4. Step 4: Simplify right side
    96,358.20x = 12,402,640,944.54
  5. Step 5: Solve for x
    x = 12,402,640,944.54/96,358.20
  6. Step 6: Final answer
    x = 128,713.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.