Home / 131,973.40-198,003.56-87,774.04

Finding the Fourth Proportional to 131,973.40, 198,003.56 and 87,774.04

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Solution

The fourth proportional to 131,973.40, 198,003.56 and 87,774.04 is: 131,689.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,973.40 : 198,003.56 = 87,774.04 : x
  2. Step 2: Convert to fraction form
    131,973.40/198,003.56 = 87,774.04/x
  3. Step 3: Cross multiply
    131,973.40x = 198,003.56 × 87,774.04
  4. Step 4: Simplify right side
    131,973.40x = 17,379,572,395.58
  5. Step 5: Solve for x
    x = 17,379,572,395.58/131,973.40
  6. Step 6: Final answer
    x = 131,689.96

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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.