Home / 115,414.10-159,270.80-64,423.88

Finding the Fourth Proportional to 115,414.10, 159,270.80 and 64,423.88

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Solution

The fourth proportional to 115,414.10, 159,270.80 and 64,423.88 is: 88,904.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,414.10 : 159,270.80 = 64,423.88 : x
  2. Step 2: Convert to fraction form
    115,414.10/159,270.80 = 64,423.88/x
  3. Step 3: Cross multiply
    115,414.10x = 159,270.80 × 64,423.88
  4. Step 4: Simplify right side
    115,414.10x = 10,260,842,906.70
  5. Step 5: Solve for x
    x = 10,260,842,906.70/115,414.10
  6. Step 6: Final answer
    x = 88,904.59

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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.