Home / 281,326.13-421,989.20-84,334.13

Finding the Fourth Proportional to 281,326.13, 421,989.20 and 84,334.13

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Solution

The fourth proportional to 281,326.13, 421,989.20 and 84,334.13 is: 126,501.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,326.13 : 421,989.20 = 84,334.13 : x
  2. Step 2: Convert to fraction form
    281,326.13/421,989.20 = 84,334.13/x
  3. Step 3: Cross multiply
    281,326.13x = 421,989.20 × 84,334.13
  4. Step 4: Simplify right side
    281,326.13x = 35,588,089,519.78
  5. Step 5: Solve for x
    x = 35,588,089,519.78/281,326.13
  6. Step 6: Final answer
    x = 126,501.19

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Similar ratio
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1.5x scale

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.