Home / 140,881.38-194,414.90-77,220.24

Finding the Fourth Proportional to 140,881.38, 194,414.90 and 77,220.24

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Solution

The fourth proportional to 140,881.38, 194,414.90 and 77,220.24 is: 106,563.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,881.38 : 194,414.90 = 77,220.24 : x
  2. Step 2: Convert to fraction form
    140,881.38/194,414.90 = 77,220.24/x
  3. Step 3: Cross multiply
    140,881.38x = 194,414.90 × 77,220.24
  4. Step 4: Simplify right side
    140,881.38x = 15,012,764,851.47
  5. Step 5: Solve for x
    x = 15,012,764,851.47/140,881.38
  6. Step 6: Final answer
    x = 106,563.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.