Home / 132,205.31-198,239.91-53,298.35

Finding the Fourth Proportional to 132,205.31, 198,239.91 and 53,298.35

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Solution

The fourth proportional to 132,205.31, 198,239.91 and 53,298.35 is: 79,920.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,205.31 : 198,239.91 = 53,298.35 : x
  2. Step 2: Convert to fraction form
    132,205.31/198,239.91 = 53,298.35/x
  3. Step 3: Cross multiply
    132,205.31x = 198,239.91 × 53,298.35
  4. Step 4: Simplify right side
    132,205.31x = 10,565,859,115.95
  5. Step 5: Solve for x
    x = 10,565,859,115.95/132,205.31
  6. Step 6: Final answer
    x = 79,920.08

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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.