Home / 115,522.15-159,418.81-64,535.61

Finding the Fourth Proportional to 115,522.15, 159,418.81 and 64,535.61

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Solution

The fourth proportional to 115,522.15, 159,418.81 and 64,535.61 is: 89,058.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,522.15 : 159,418.81 = 64,535.61 : x
  2. Step 2: Convert to fraction form
    115,522.15/159,418.81 = 64,535.61/x
  3. Step 3: Cross multiply
    115,522.15x = 159,418.81 × 64,535.61
  4. Step 4: Simplify right side
    115,522.15x = 10,288,190,197.44
  5. Step 5: Solve for x
    x = 10,288,190,197.44/115,522.15
  6. Step 6: Final answer
    x = 89,058.16

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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.