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Finding the Fourth Proportional to 104,161.62, 143,635.50 and 89,104.14

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Solution

The fourth proportional to 104,161.62, 143,635.50 and 89,104.14 is: 122,871.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,161.62 : 143,635.50 = 89,104.14 : x
  2. Step 2: Convert to fraction form
    104,161.62/143,635.50 = 89,104.14/x
  3. Step 3: Cross multiply
    104,161.62x = 143,635.50 × 89,104.14
  4. Step 4: Simplify right side
    104,161.62x = 12,798,517,700.97
  5. Step 5: Solve for x
    x = 12,798,517,700.97/104,161.62
  6. Step 6: Final answer
    x = 122,871.72

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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.