Home / 121,344.20-182,016.30-77,166.80

Finding the Fourth Proportional to 121,344.20, 182,016.30 and 77,166.80

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Solution

The fourth proportional to 121,344.20, 182,016.30 and 77,166.80 is: 115,750.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,344.20 : 182,016.30 = 77,166.80 : x
  2. Step 2: Convert to fraction form
    121,344.20/182,016.30 = 77,166.80/x
  3. Step 3: Cross multiply
    121,344.20x = 182,016.30 × 77,166.80
  4. Step 4: Simplify right side
    121,344.20x = 14,045,615,418.84
  5. Step 5: Solve for x
    x = 14,045,615,418.84/121,344.20
  6. Step 6: Final answer
    x = 115,750.20

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1.5x scale

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.