Home / 115,580.60-173,255.70-53,142.20

Finding the Fourth Proportional to 115,580.60, 173,255.70 and 53,142.20

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Solution

The fourth proportional to 115,580.60, 173,255.70 and 53,142.20 is: 79,660.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,580.60 : 173,255.70 = 53,142.20 : x
  2. Step 2: Convert to fraction form
    115,580.60/173,255.70 = 53,142.20/x
  3. Step 3: Cross multiply
    115,580.60x = 173,255.70 × 53,142.20
  4. Step 4: Simplify right side
    115,580.60x = 9,207,189,060.54
  5. Step 5: Solve for x
    x = 9,207,189,060.54/115,580.60
  6. Step 6: Final answer
    x = 79,660.33

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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.