Home / 84,532.47-126,798.75-68,718.66

Finding the Fourth Proportional to 84,532.47, 126,798.75 and 68,718.66

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Solution

The fourth proportional to 84,532.47, 126,798.75 and 68,718.66 is: 103,078.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,532.47 : 126,798.75 = 68,718.66 : x
  2. Step 2: Convert to fraction form
    84,532.47/126,798.75 = 68,718.66/x
  3. Step 3: Cross multiply
    84,532.47x = 126,798.75 × 68,718.66
  4. Step 4: Simplify right side
    84,532.47x = 8,713,440,189.68
  5. Step 5: Solve for x
    x = 8,713,440,189.68/84,532.47
  6. Step 6: Final answer
    x = 103,078.03

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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.