Home / 120,141.20-179,628.60-88,648.40

Finding the Fourth Proportional to 120,141.20, 179,628.60 and 88,648.40

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Solution

The fourth proportional to 120,141.20, 179,628.60 and 88,648.40 is: 132,542.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,141.20 : 179,628.60 = 88,648.40 : x
  2. Step 2: Convert to fraction form
    120,141.20/179,628.60 = 88,648.40/x
  3. Step 3: Cross multiply
    120,141.20x = 179,628.60 × 88,648.40
  4. Step 4: Simplify right side
    120,141.20x = 15,923,787,984.24
  5. Step 5: Solve for x
    x = 15,923,787,984.24/120,141.20
  6. Step 6: Final answer
    x = 132,542.28

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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.