Home / 115,249.28-159,029.52-64,249.52

Finding the Fourth Proportional to 115,249.28, 159,029.52 and 64,249.52

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Solution

The fourth proportional to 115,249.28, 159,029.52 and 64,249.52 is: 88,656.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,249.28 : 159,029.52 = 64,249.52 : x
  2. Step 2: Convert to fraction form
    115,249.28/159,029.52 = 64,249.52/x
  3. Step 3: Cross multiply
    115,249.28x = 159,029.52 × 64,249.52
  4. Step 4: Simplify right side
    115,249.28x = 10,217,570,325.83
  5. Step 5: Solve for x
    x = 10,217,570,325.83/115,249.28
  6. Step 6: Final answer
    x = 88,656.26

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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.