Home / 115,507.24-159,398.26-64,520.89

Finding the Fourth Proportional to 115,507.24, 159,398.26 and 64,520.89

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Solution

The fourth proportional to 115,507.24, 159,398.26 and 64,520.89 is: 89,037.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,507.24 : 159,398.26 = 64,520.89 : x
  2. Step 2: Convert to fraction form
    115,507.24/159,398.26 = 64,520.89/x
  3. Step 3: Cross multiply
    115,507.24x = 159,398.26 × 64,520.89
  4. Step 4: Simplify right side
    115,507.24x = 10,284,517,599.65
  5. Step 5: Solve for x
    x = 10,284,517,599.65/115,507.24
  6. Step 6: Final answer
    x = 89,037.86

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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.