Home / 103,149.26-142,392.61-64,964.92

Finding the Fourth Proportional to 103,149.26, 142,392.61 and 64,964.92

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Solution

The fourth proportional to 103,149.26, 142,392.61 and 64,964.92 is: 89,680.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,149.26 : 142,392.61 = 64,964.92 : x
  2. Step 2: Convert to fraction form
    103,149.26/142,392.61 = 64,964.92/x
  3. Step 3: Cross multiply
    103,149.26x = 142,392.61 × 64,964.92
  4. Step 4: Simplify right side
    103,149.26x = 9,250,524,517.24
  5. Step 5: Solve for x
    x = 9,250,524,517.24/103,149.26
  6. Step 6: Final answer
    x = 89,680.96

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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.