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Finding the Fourth Proportional to 101,645.28, 152,439.12 and 64,149.12

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Solution

The fourth proportional to 101,645.28, 152,439.12 and 64,149.12 is: 96,205.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,645.28 : 152,439.12 = 64,149.12 : x
  2. Step 2: Convert to fraction form
    101,645.28/152,439.12 = 64,149.12/x
  3. Step 3: Cross multiply
    101,645.28x = 152,439.12 × 64,149.12
  4. Step 4: Simplify right side
    101,645.28x = 9,778,835,401.57
  5. Step 5: Solve for x
    x = 9,778,835,401.57/101,645.28
  6. Step 6: Final answer
    x = 96,205.50

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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.