Home / 126,879.27-190,259.31-73,586.40

Finding the Fourth Proportional to 126,879.27, 190,259.31 and 73,586.40

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Solution

The fourth proportional to 126,879.27, 190,259.31 and 73,586.40 is: 110,345.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,879.27 : 190,259.31 = 73,586.40 : x
  2. Step 2: Convert to fraction form
    126,879.27/190,259.31 = 73,586.40/x
  3. Step 3: Cross multiply
    126,879.27x = 190,259.31 × 73,586.40
  4. Step 4: Simplify right side
    126,879.27x = 14,000,497,689.38
  5. Step 5: Solve for x
    x = 14,000,497,689.38/126,879.27
  6. Step 6: Final answer
    x = 110,345.04

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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.