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Finding the Fourth Proportional to 149,959.80, 224,939.70 and 137,712.60

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Solution

The fourth proportional to 149,959.80, 224,939.70 and 137,712.60 is: 206,568.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,959.80 : 224,939.70 = 137,712.60 : x
  2. Step 2: Convert to fraction form
    149,959.80/224,939.70 = 137,712.60/x
  3. Step 3: Cross multiply
    149,959.80x = 224,939.70 × 137,712.60
  4. Step 4: Simplify right side
    149,959.80x = 30,977,030,930.22
  5. Step 5: Solve for x
    x = 30,977,030,930.22/149,959.80
  6. Step 6: Final answer
    x = 206,568.90

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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.