Home / 270,986.66-406,501.03-81,432.24

Finding the Fourth Proportional to 270,986.66, 406,501.03 and 81,432.24

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Solution

The fourth proportional to 270,986.66, 406,501.03 and 81,432.24 is: 122,154.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,986.66 : 406,501.03 = 81,432.24 : x
  2. Step 2: Convert to fraction form
    270,986.66/406,501.03 = 81,432.24/x
  3. Step 3: Cross multiply
    270,986.66x = 406,501.03 × 81,432.24
  4. Step 4: Simplify right side
    270,986.66x = 33,102,288,012.62
  5. Step 5: Solve for x
    x = 33,102,288,012.62/270,986.66
  6. Step 6: Final answer
    x = 122,154.68

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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.