Home / 481,146.30-721,719.45-126,196.20

Finding the Fourth Proportional to 481,146.30, 721,719.45 and 126,196.20

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Solution

The fourth proportional to 481,146.30, 721,719.45 and 126,196.20 is: 189,294.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,146.30 : 721,719.45 = 126,196.20 : x
  2. Step 2: Convert to fraction form
    481,146.30/721,719.45 = 126,196.20/x
  3. Step 3: Cross multiply
    481,146.30x = 721,719.45 × 126,196.20
  4. Step 4: Simplify right side
    481,146.30x = 91,078,252,056.09
  5. Step 5: Solve for x
    x = 91,078,252,056.09/481,146.30
  6. Step 6: Final answer
    x = 189,294.30

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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.