Home / 132,615.38-198,928.53-39,121.13

Finding the Fourth Proportional to 132,615.38, 198,928.53 and 39,121.13

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Solution

The fourth proportional to 132,615.38, 198,928.53 and 39,121.13 is: 58,683.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,615.38 : 198,928.53 = 39,121.13 : x
  2. Step 2: Convert to fraction form
    132,615.38/198,928.53 = 39,121.13/x
  3. Step 3: Cross multiply
    132,615.38x = 198,928.53 × 39,121.13
  4. Step 4: Simplify right side
    132,615.38x = 7,782,307,888.20
  5. Step 5: Solve for x
    x = 7,782,307,888.20/132,615.38
  6. Step 6: Final answer
    x = 58,683.30

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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.