Home / 199,631.40-299,447.10-132,271.80

Finding the Fourth Proportional to 199,631.40, 299,447.10 and 132,271.80

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Solution

The fourth proportional to 199,631.40, 299,447.10 and 132,271.80 is: 198,407.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,631.40 : 299,447.10 = 132,271.80 : x
  2. Step 2: Convert to fraction form
    199,631.40/299,447.10 = 132,271.80/x
  3. Step 3: Cross multiply
    199,631.40x = 299,447.10 × 132,271.80
  4. Step 4: Simplify right side
    199,631.40x = 39,608,406,921.78
  5. Step 5: Solve for x
    x = 39,608,406,921.78/199,631.40
  6. Step 6: Final answer
    x = 198,407.70

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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.