Home / 138,197.32-206,286.65-118,601.80

Finding the Fourth Proportional to 138,197.32, 206,286.65 and 118,601.80

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Solution

The fourth proportional to 138,197.32, 206,286.65 and 118,601.80 is: 177,036.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,197.32 : 206,286.65 = 118,601.80 : x
  2. Step 2: Convert to fraction form
    138,197.32/206,286.65 = 118,601.80/x
  3. Step 3: Cross multiply
    138,197.32x = 206,286.65 × 118,601.80
  4. Step 4: Simplify right side
    138,197.32x = 24,465,968,005.97
  5. Step 5: Solve for x
    x = 24,465,968,005.97/138,197.32
  6. Step 6: Final answer
    x = 177,036.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.