Home / 161,862.20-243,311.70-115,436.60

Finding the Fourth Proportional to 161,862.20, 243,311.70 and 115,436.60

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Solution

The fourth proportional to 161,862.20, 243,311.70 and 115,436.60 is: 173,524.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,862.20 : 243,311.70 = 115,436.60 : x
  2. Step 2: Convert to fraction form
    161,862.20/243,311.70 = 115,436.60/x
  3. Step 3: Cross multiply
    161,862.20x = 243,311.70 × 115,436.60
  4. Step 4: Simplify right side
    161,862.20x = 28,087,075,388.22
  5. Step 5: Solve for x
    x = 28,087,075,388.22/161,862.20
  6. Step 6: Final answer
    x = 173,524.61

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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.