Home / 132,001.20-198,001.80-129,085.20

Finding the Fourth Proportional to 132,001.20, 198,001.80 and 129,085.20

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Solution

The fourth proportional to 132,001.20, 198,001.80 and 129,085.20 is: 193,627.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,001.20 : 198,001.80 = 129,085.20 : x
  2. Step 2: Convert to fraction form
    132,001.20/198,001.80 = 129,085.20/x
  3. Step 3: Cross multiply
    132,001.20x = 198,001.80 × 129,085.20
  4. Step 4: Simplify right side
    132,001.20x = 25,559,101,953.36
  5. Step 5: Solve for x
    x = 25,559,101,953.36/132,001.20
  6. Step 6: Final answer
    x = 193,627.80

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1.5x scale

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.