Home / 132,343.40-198,515.10-76,356.20

Finding the Fourth Proportional to 132,343.40, 198,515.10 and 76,356.20

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Solution

The fourth proportional to 132,343.40, 198,515.10 and 76,356.20 is: 114,534.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,343.40 : 198,515.10 = 76,356.20 : x
  2. Step 2: Convert to fraction form
    132,343.40/198,515.10 = 76,356.20/x
  3. Step 3: Cross multiply
    132,343.40x = 198,515.10 × 76,356.20
  4. Step 4: Simplify right side
    132,343.40x = 15,157,858,678.62
  5. Step 5: Solve for x
    x = 15,157,858,678.62/132,343.40
  6. Step 6: Final answer
    x = 114,534.30

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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.