Home / 117,690.28-162,398.46-66,708.88

Finding the Fourth Proportional to 117,690.28, 162,398.46 and 66,708.88

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Solution

The fourth proportional to 117,690.28, 162,398.46 and 66,708.88 is: 92,050.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,690.28 : 162,398.46 = 66,708.88 : x
  2. Step 2: Convert to fraction form
    117,690.28/162,398.46 = 66,708.88/x
  3. Step 3: Cross multiply
    117,690.28x = 162,398.46 × 66,708.88
  4. Step 4: Simplify right side
    117,690.28x = 10,833,419,380.32
  5. Step 5: Solve for x
    x = 10,833,419,380.32/117,690.28
  6. Step 6: Final answer
    x = 92,050.25

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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.