Home / 127,833.22-176,415.87-71,245

Finding the Fourth Proportional to 127,833.22, 176,415.87 and 71,245

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Solution

The fourth proportional to 127,833.22, 176,415.87 and 71,245 is: 98,321.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,833.22 : 176,415.87 = 71,245 : x
  2. Step 2: Convert to fraction form
    127,833.22/176,415.87 = 71,245/x
  3. Step 3: Cross multiply
    127,833.22x = 176,415.87 × 71,245
  4. Step 4: Simplify right side
    127,833.22x = 12,568,748,658.15
  5. Step 5: Solve for x
    x = 12,568,748,658.15/127,833.22
  6. Step 6: Final answer
    x = 98,321.46

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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.