Home / 88,404.48-131,955.84-81,017.28

Finding the Fourth Proportional to 88,404.48, 131,955.84 and 81,017.28

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Solution

The fourth proportional to 88,404.48, 131,955.84 and 81,017.28 is: 120,929.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,404.48 : 131,955.84 = 81,017.28 : x
  2. Step 2: Convert to fraction form
    88,404.48/131,955.84 = 81,017.28/x
  3. Step 3: Cross multiply
    88,404.48x = 131,955.84 × 81,017.28
  4. Step 4: Simplify right side
    88,404.48x = 10,690,703,236.92
  5. Step 5: Solve for x
    x = 10,690,703,236.92/88,404.48
  6. Step 6: Final answer
    x = 120,929.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.