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Finding the Fourth Proportional to 126,716.67, 174,851.67 and 75,718.65

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Solution

The fourth proportional to 126,716.67, 174,851.67 and 75,718.65 is: 104,481.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,716.67 : 174,851.67 = 75,718.65 : x
  2. Step 2: Convert to fraction form
    126,716.67/174,851.67 = 75,718.65/x
  3. Step 3: Cross multiply
    126,716.67x = 174,851.67 × 75,718.65
  4. Step 4: Simplify right side
    126,716.67x = 13,239,532,402.65
  5. Step 5: Solve for x
    x = 13,239,532,402.65/126,716.67
  6. Step 6: Final answer
    x = 104,481.38

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1.5x scale

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.