Home / 117,712.27-162,439.51-66,729.70

Finding the Fourth Proportional to 117,712.27, 162,439.51 and 66,729.70

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Solution

The fourth proportional to 117,712.27, 162,439.51 and 66,729.70 is: 92,085.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,712.27 : 162,439.51 = 66,729.70 : x
  2. Step 2: Convert to fraction form
    117,712.27/162,439.51 = 66,729.70/x
  3. Step 3: Cross multiply
    117,712.27x = 162,439.51 × 66,729.70
  4. Step 4: Simplify right side
    117,712.27x = 10,839,539,770.45
  5. Step 5: Solve for x
    x = 10,839,539,770.45/117,712.27
  6. Step 6: Final answer
    x = 92,085.05

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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.