Home / 154,402.20-231,311.70-79,266.60

Finding the Fourth Proportional to 154,402.20, 231,311.70 and 79,266.60

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Solution

The fourth proportional to 154,402.20, 231,311.70 and 79,266.60 is: 118,750.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,402.20 : 231,311.70 = 79,266.60 : x
  2. Step 2: Convert to fraction form
    154,402.20/231,311.70 = 79,266.60/x
  3. Step 3: Cross multiply
    154,402.20x = 231,311.70 × 79,266.60
  4. Step 4: Simplify right side
    154,402.20x = 18,335,291,999.22
  5. Step 5: Solve for x
    x = 18,335,291,999.22/154,402.20
  6. Step 6: Final answer
    x = 118,750.20

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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.