Home / 174,780.80-261,998.40-69,459.20

Finding the Fourth Proportional to 174,780.80, 261,998.40 and 69,459.20

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Solution

The fourth proportional to 174,780.80, 261,998.40 and 69,459.20 is: 104,120.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,780.80 : 261,998.40 = 69,459.20 : x
  2. Step 2: Convert to fraction form
    174,780.80/261,998.40 = 69,459.20/x
  3. Step 3: Cross multiply
    174,780.80x = 261,998.40 × 69,459.20
  4. Step 4: Simplify right side
    174,780.80x = 18,198,199,265.28
  5. Step 5: Solve for x
    x = 18,198,199,265.28/174,780.80
  6. Step 6: Final answer
    x = 104,120.13

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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.