Home / 132,215.60-198,031.80-79,533.20

Finding the Fourth Proportional to 132,215.60, 198,031.80 and 79,533.20

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Solution

The fourth proportional to 132,215.60, 198,031.80 and 79,533.20 is: 119,124.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,215.60 : 198,031.80 = 79,533.20 : x
  2. Step 2: Convert to fraction form
    132,215.60/198,031.80 = 79,533.20/x
  3. Step 3: Cross multiply
    132,215.60x = 198,031.80 × 79,533.20
  4. Step 4: Simplify right side
    132,215.60x = 15,750,102,755.76
  5. Step 5: Solve for x
    x = 15,750,102,755.76/132,215.60
  6. Step 6: Final answer
    x = 119,124.39

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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.