Home / 115,916.20-173,874.30-87,922.60

Finding the Fourth Proportional to 115,916.20, 173,874.30 and 87,922.60

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Solution

The fourth proportional to 115,916.20, 173,874.30 and 87,922.60 is: 131,883.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,916.20 : 173,874.30 = 87,922.60 : x
  2. Step 2: Convert to fraction form
    115,916.20/173,874.30 = 87,922.60/x
  3. Step 3: Cross multiply
    115,916.20x = 173,874.30 × 87,922.60
  4. Step 4: Simplify right side
    115,916.20x = 15,287,480,529.18
  5. Step 5: Solve for x
    x = 15,287,480,529.18/115,916.20
  6. Step 6: Final answer
    x = 131,883.90

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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.