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Finding the Fourth Proportional to 115,988.45, 160,141.17 and 89,082.89

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Solution

The fourth proportional to 115,988.45, 160,141.17 and 89,082.89 is: 122,993.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,988.45 : 160,141.17 = 89,082.89 : x
  2. Step 2: Convert to fraction form
    115,988.45/160,141.17 = 89,082.89/x
  3. Step 3: Cross multiply
    115,988.45x = 160,141.17 × 89,082.89
  4. Step 4: Simplify right side
    115,988.45x = 14,265,838,231.58
  5. Step 5: Solve for x
    x = 14,265,838,231.58/115,988.45
  6. Step 6: Final answer
    x = 122,993.61

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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.