Home / 107,841.20-161,857.80-63,412.40

Finding the Fourth Proportional to 107,841.20, 161,857.80 and 63,412.40

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Solution

The fourth proportional to 107,841.20, 161,857.80 and 63,412.40 is: 95,175.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,841.20 : 161,857.80 = 63,412.40 : x
  2. Step 2: Convert to fraction form
    107,841.20/161,857.80 = 63,412.40/x
  3. Step 3: Cross multiply
    107,841.20x = 161,857.80 × 63,412.40
  4. Step 4: Simplify right side
    107,841.20x = 10,263,791,556.72
  5. Step 5: Solve for x
    x = 10,263,791,556.72/107,841.20
  6. Step 6: Final answer
    x = 95,175.05

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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.