Home / 137,923.60-206,987.80-54,877.20

Finding the Fourth Proportional to 137,923.60, 206,987.80 and 54,877.20

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Solution

The fourth proportional to 137,923.60, 206,987.80 and 54,877.20 is: 82,356.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,923.60 : 206,987.80 = 54,877.20 : x
  2. Step 2: Convert to fraction form
    137,923.60/206,987.80 = 54,877.20/x
  3. Step 3: Cross multiply
    137,923.60x = 206,987.80 × 54,877.20
  4. Step 4: Simplify right side
    137,923.60x = 11,358,910,898.16
  5. Step 5: Solve for x
    x = 11,358,910,898.16/137,923.60
  6. Step 6: Final answer
    x = 82,356.54

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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.