Home / 115,694.47-159,651.06-64,711.87

Finding the Fourth Proportional to 115,694.47, 159,651.06 and 64,711.87

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Solution

The fourth proportional to 115,694.47, 159,651.06 and 64,711.87 is: 89,298.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,694.47 : 159,651.06 = 64,711.87 : x
  2. Step 2: Convert to fraction form
    115,694.47/159,651.06 = 64,711.87/x
  3. Step 3: Cross multiply
    115,694.47x = 159,651.06 × 64,711.87
  4. Step 4: Simplify right side
    115,694.47x = 10,331,318,640.08
  5. Step 5: Solve for x
    x = 10,331,318,640.08/115,694.47
  6. Step 6: Final answer
    x = 89,298.29

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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.