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Finding the Fourth Proportional to 116,122.39, 160,063.70 and 87,398.87

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Solution

The fourth proportional to 116,122.39, 160,063.70 and 87,398.87 is: 120,471.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,122.39 : 160,063.70 = 87,398.87 : x
  2. Step 2: Convert to fraction form
    116,122.39/160,063.70 = 87,398.87/x
  3. Step 3: Cross multiply
    116,122.39x = 160,063.70 × 87,398.87
  4. Step 4: Simplify right side
    116,122.39x = 13,989,385,270.71
  5. Step 5: Solve for x
    x = 13,989,385,270.71/116,122.39
  6. Step 6: Final answer
    x = 120,471.04

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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.