Home / 115,508.24-159,399.64-64,521.89

Finding the Fourth Proportional to 115,508.24, 159,399.64 and 64,521.89

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Solution

The fourth proportional to 115,508.24, 159,399.64 and 64,521.89 is: 89,039.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,508.24 : 159,399.64 = 64,521.89 : x
  2. Step 2: Convert to fraction form
    115,508.24/159,399.64 = 64,521.89/x
  3. Step 3: Cross multiply
    115,508.24x = 159,399.64 × 64,521.89
  4. Step 4: Simplify right side
    115,508.24x = 10,284,766,038.12
  5. Step 5: Solve for x
    x = 10,284,766,038.12/115,508.24
  6. Step 6: Final answer
    x = 89,039.24

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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.