Home / 118,278.23-163,218.24-67,286.15

Finding the Fourth Proportional to 118,278.23, 163,218.24 and 67,286.15

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Solution

The fourth proportional to 118,278.23, 163,218.24 and 67,286.15 is: 92,851.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,278.23 : 163,218.24 = 67,286.15 : x
  2. Step 2: Convert to fraction form
    118,278.23/163,218.24 = 67,286.15/x
  3. Step 3: Cross multiply
    118,278.23x = 163,218.24 × 67,286.15
  4. Step 4: Simplify right side
    118,278.23x = 10,982,326,163.28
  5. Step 5: Solve for x
    x = 10,982,326,163.28/118,278.23
  6. Step 6: Final answer
    x = 92,851.63

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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.