Home / 132,488.12-198,642.26-67,412.64

Finding the Fourth Proportional to 132,488.12, 198,642.26 and 67,412.64

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Solution

The fourth proportional to 132,488.12, 198,642.26 and 67,412.64 is: 101,073.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,488.12 : 198,642.26 = 67,412.64 : x
  2. Step 2: Convert to fraction form
    132,488.12/198,642.26 = 67,412.64/x
  3. Step 3: Cross multiply
    132,488.12x = 198,642.26 × 67,412.64
  4. Step 4: Simplify right side
    132,488.12x = 13,390,999,162.17
  5. Step 5: Solve for x
    x = 13,390,999,162.17/132,488.12
  6. Step 6: Final answer
    x = 101,073.21

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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.