Home / 143,419.60-215,129.40-110,306.80

Finding the Fourth Proportional to 143,419.60, 215,129.40 and 110,306.80

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Solution

The fourth proportional to 143,419.60, 215,129.40 and 110,306.80 is: 165,460.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,419.60 : 215,129.40 = 110,306.80 : x
  2. Step 2: Convert to fraction form
    143,419.60/215,129.40 = 110,306.80/x
  3. Step 3: Cross multiply
    143,419.60x = 215,129.40 × 110,306.80
  4. Step 4: Simplify right side
    143,419.60x = 23,730,235,699.92
  5. Step 5: Solve for x
    x = 23,730,235,699.92/143,419.60
  6. Step 6: Final answer
    x = 165,460.20

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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.