Home / 115,105.60-172,677.30-36,200.80

Finding the Fourth Proportional to 115,105.60, 172,677.30 and 36,200.80

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Solution

The fourth proportional to 115,105.60, 172,677.30 and 36,200.80 is: 54,307.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,105.60 : 172,677.30 = 36,200.80 : x
  2. Step 2: Convert to fraction form
    115,105.60/172,677.30 = 36,200.80/x
  3. Step 3: Cross multiply
    115,105.60x = 172,677.30 × 36,200.80
  4. Step 4: Simplify right side
    115,105.60x = 6,251,056,401.84
  5. Step 5: Solve for x
    x = 6,251,056,401.84/115,105.60
  6. Step 6: Final answer
    x = 54,307.14

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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.