Home / 132,721.83-198,962.42-66,182.36

Finding the Fourth Proportional to 132,721.83, 198,962.42 and 66,182.36

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Solution

The fourth proportional to 132,721.83, 198,962.42 and 66,182.36 is: 99,213.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,721.83 : 198,962.42 = 66,182.36 : x
  2. Step 2: Convert to fraction form
    132,721.83/198,962.42 = 66,182.36/x
  3. Step 3: Cross multiply
    132,721.83x = 198,962.42 × 66,182.36
  4. Step 4: Simplify right side
    132,721.83x = 13,167,801,181.19
  5. Step 5: Solve for x
    x = 13,167,801,181.19/132,721.83
  6. Step 6: Final answer
    x = 99,213.53

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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.