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Finding the Fourth Proportional to 132,057.60, 198,028.80 and 53,145.60

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Solution

The fourth proportional to 132,057.60, 198,028.80 and 53,145.60 is: 79,695.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,057.60 : 198,028.80 = 53,145.60 : x
  2. Step 2: Convert to fraction form
    132,057.60/198,028.80 = 53,145.60/x
  3. Step 3: Cross multiply
    132,057.60x = 198,028.80 × 53,145.60
  4. Step 4: Simplify right side
    132,057.60x = 10,524,359,393.28
  5. Step 5: Solve for x
    x = 10,524,359,393.28/132,057.60
  6. Step 6: Final answer
    x = 79,695.22

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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.