Home / 115,418.66-159,282.56-64,434.22

Finding the Fourth Proportional to 115,418.66, 159,282.56 and 64,434.22

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Solution

The fourth proportional to 115,418.66, 159,282.56 and 64,434.22 is: 88,921.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,418.66 : 159,282.56 = 64,434.22 : x
  2. Step 2: Convert to fraction form
    115,418.66/159,282.56 = 64,434.22/x
  3. Step 3: Cross multiply
    115,418.66x = 159,282.56 × 64,434.22
  4. Step 4: Simplify right side
    115,418.66x = 10,263,247,513.20
  5. Step 5: Solve for x
    x = 10,263,247,513.20/115,418.66
  6. Step 6: Final answer
    x = 88,921.91

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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.