Home / 115,917.60-173,876.40-89,641.20

Finding the Fourth Proportional to 115,917.60, 173,876.40 and 89,641.20

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Solution

The fourth proportional to 115,917.60, 173,876.40 and 89,641.20 is: 134,461.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,917.60 : 173,876.40 = 89,641.20 : x
  2. Step 2: Convert to fraction form
    115,917.60/173,876.40 = 89,641.20/x
  3. Step 3: Cross multiply
    115,917.60x = 173,876.40 × 89,641.20
  4. Step 4: Simplify right side
    115,917.60x = 15,586,489,147.68
  5. Step 5: Solve for x
    x = 15,586,489,147.68/115,917.60
  6. Step 6: Final answer
    x = 134,461.80

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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.