Home / 88,032.88-131,713.98-77,418.64

Finding the Fourth Proportional to 88,032.88, 131,713.98 and 77,418.64

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Solution

The fourth proportional to 88,032.88, 131,713.98 and 77,418.64 is: 115,833.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,032.88 : 131,713.98 = 77,418.64 : x
  2. Step 2: Convert to fraction form
    88,032.88/131,713.98 = 77,418.64/x
  3. Step 3: Cross multiply
    88,032.88x = 131,713.98 × 77,418.64
  4. Step 4: Simplify right side
    88,032.88x = 10,197,117,200.59
  5. Step 5: Solve for x
    x = 10,197,117,200.59/88,032.88
  6. Step 6: Final answer
    x = 115,833.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.