Home / 126,720.67-174,857.19-75,722.65

Finding the Fourth Proportional to 126,720.67, 174,857.19 and 75,722.65

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Solution

The fourth proportional to 126,720.67, 174,857.19 and 75,722.65 is: 104,486.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,720.67 : 174,857.19 = 75,722.65 : x
  2. Step 2: Convert to fraction form
    126,720.67/174,857.19 = 75,722.65/x
  3. Step 3: Cross multiply
    126,720.67x = 174,857.19 × 75,722.65
  4. Step 4: Simplify right side
    126,720.67x = 13,240,649,798.35
  5. Step 5: Solve for x
    x = 13,240,649,798.35/126,720.67
  6. Step 6: Final answer
    x = 104,486.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.