Home / 115,502.46-159,391.68-64,515.90

Finding the Fourth Proportional to 115,502.46, 159,391.68 and 64,515.90

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Solution

The fourth proportional to 115,502.46, 159,391.68 and 64,515.90 is: 89,030.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,502.46 : 159,391.68 = 64,515.90 : x
  2. Step 2: Convert to fraction form
    115,502.46/159,391.68 = 64,515.90/x
  3. Step 3: Cross multiply
    115,502.46x = 159,391.68 × 64,515.90
  4. Step 4: Simplify right side
    115,502.46x = 10,283,297,687.71
  5. Step 5: Solve for x
    x = 10,283,297,687.71/115,502.46
  6. Step 6: Final answer
    x = 89,030.98

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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.