Home / 127,360.20-191,040.30-74,216.10

Finding the Fourth Proportional to 127,360.20, 191,040.30 and 74,216.10

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Solution

The fourth proportional to 127,360.20, 191,040.30 and 74,216.10 is: 111,324.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,360.20 : 191,040.30 = 74,216.10 : x
  2. Step 2: Convert to fraction form
    127,360.20/191,040.30 = 74,216.10/x
  3. Step 3: Cross multiply
    127,360.20x = 191,040.30 × 74,216.10
  4. Step 4: Simplify right side
    127,360.20x = 14,178,266,008.83
  5. Step 5: Solve for x
    x = 14,178,266,008.83/127,360.20
  6. Step 6: Final answer
    x = 111,324.15

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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.