Home / 481,036.80-721,555.20-126,086.70

Finding the Fourth Proportional to 481,036.80, 721,555.20 and 126,086.70

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Solution

The fourth proportional to 481,036.80, 721,555.20 and 126,086.70 is: 189,130.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,036.80 : 721,555.20 = 126,086.70 : x
  2. Step 2: Convert to fraction form
    481,036.80/721,555.20 = 126,086.70/x
  3. Step 3: Cross multiply
    481,036.80x = 721,555.20 × 126,086.70
  4. Step 4: Simplify right side
    481,036.80x = 90,978,514,035.84
  5. Step 5: Solve for x
    x = 90,978,514,035.84/481,036.80
  6. Step 6: Final answer
    x = 189,130.05

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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.