Home / 121,996.46-168,335.03-76,642.34

Finding the Fourth Proportional to 121,996.46, 168,335.03 and 76,642.34

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Solution

The fourth proportional to 121,996.46, 168,335.03 and 76,642.34 is: 105,753.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,996.46 : 168,335.03 = 76,642.34 : x
  2. Step 2: Convert to fraction form
    121,996.46/168,335.03 = 76,642.34/x
  3. Step 3: Cross multiply
    121,996.46x = 168,335.03 × 76,642.34
  4. Step 4: Simplify right side
    121,996.46x = 12,901,589,378.28
  5. Step 5: Solve for x
    x = 12,901,589,378.28/121,996.46
  6. Step 6: Final answer
    x = 105,753.81

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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.