Home / 165,031.20-247,546.80-40,372.20

Finding the Fourth Proportional to 165,031.20, 247,546.80 and 40,372.20

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Solution

The fourth proportional to 165,031.20, 247,546.80 and 40,372.20 is: 60,558.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,031.20 : 247,546.80 = 40,372.20 : x
  2. Step 2: Convert to fraction form
    165,031.20/247,546.80 = 40,372.20/x
  3. Step 3: Cross multiply
    165,031.20x = 247,546.80 × 40,372.20
  4. Step 4: Simplify right side
    165,031.20x = 9,994,008,918.96
  5. Step 5: Solve for x
    x = 9,994,008,918.96/165,031.20
  6. Step 6: Final answer
    x = 60,558.30

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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.