Home / 132,412.43-198,538.68-53,434.40

Finding the Fourth Proportional to 132,412.43, 198,538.68 and 53,434.40

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Solution

The fourth proportional to 132,412.43, 198,538.68 and 53,434.40 is: 80,119.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,412.43 : 198,538.68 = 53,434.40 : x
  2. Step 2: Convert to fraction form
    132,412.43/198,538.68 = 53,434.40/x
  3. Step 3: Cross multiply
    132,412.43x = 198,538.68 × 53,434.40
  4. Step 4: Simplify right side
    132,412.43x = 10,608,794,450.28
  5. Step 5: Solve for x
    x = 10,608,794,450.28/132,412.43
  6. Step 6: Final answer
    x = 80,119.32

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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.