Home / 115,836.08-159,857.16-65,534

Finding the Fourth Proportional to 115,836.08, 159,857.16 and 65,534

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Solution

The fourth proportional to 115,836.08, 159,857.16 and 65,534 is: 90,438.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,836.08 : 159,857.16 = 65,534 : x
  2. Step 2: Convert to fraction form
    115,836.08/159,857.16 = 65,534/x
  3. Step 3: Cross multiply
    115,836.08x = 159,857.16 × 65,534
  4. Step 4: Simplify right side
    115,836.08x = 10,476,079,123.44
  5. Step 5: Solve for x
    x = 10,476,079,123.44/115,836.08
  6. Step 6: Final answer
    x = 90,438.83

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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.