Home / 115,877.10-173,815.65-80,241.90

Finding the Fourth Proportional to 115,877.10, 173,815.65 and 80,241.90

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Solution

The fourth proportional to 115,877.10, 173,815.65 and 80,241.90 is: 120,362.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,877.10 : 173,815.65 = 80,241.90 : x
  2. Step 2: Convert to fraction form
    115,877.10/173,815.65 = 80,241.90/x
  3. Step 3: Cross multiply
    115,877.10x = 173,815.65 × 80,241.90
  4. Step 4: Simplify right side
    115,877.10x = 13,947,298,005.74
  5. Step 5: Solve for x
    x = 13,947,298,005.74/115,877.10
  6. Step 6: Final answer
    x = 120,362.85

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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.