Home / 115,442.90-159,309.64-64,456.41

Finding the Fourth Proportional to 115,442.90, 159,309.64 and 64,456.41

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Solution

The fourth proportional to 115,442.90, 159,309.64 and 64,456.41 is: 88,948.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,442.90 : 159,309.64 = 64,456.41 : x
  2. Step 2: Convert to fraction form
    115,442.90/159,309.64 = 64,456.41/x
  3. Step 3: Cross multiply
    115,442.90x = 159,309.64 × 64,456.41
  4. Step 4: Simplify right side
    115,442.90x = 10,268,527,472.79
  5. Step 5: Solve for x
    x = 10,268,527,472.79/115,442.90
  6. Step 6: Final answer
    x = 88,948.97

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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.