Home / 132,128.32-198,140.64-53,227.84

Finding the Fourth Proportional to 132,128.32, 198,140.64 and 53,227.84

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Solution

The fourth proportional to 132,128.32, 198,140.64 and 53,227.84 is: 79,820.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,128.32 : 198,140.64 = 53,227.84 : x
  2. Step 2: Convert to fraction form
    132,128.32/198,140.64 = 53,227.84/x
  3. Step 3: Cross multiply
    132,128.32x = 198,140.64 × 53,227.84
  4. Step 4: Simplify right side
    132,128.32x = 10,546,598,283.42
  5. Step 5: Solve for x
    x = 10,546,598,283.42/132,128.32
  6. Step 6: Final answer
    x = 79,820.88

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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.