Home / 137,732.80-206,307.60-122,958.40

Finding the Fourth Proportional to 137,732.80, 206,307.60 and 122,958.40

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Solution

The fourth proportional to 137,732.80, 206,307.60 and 122,958.40 is: 184,177.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,732.80 : 206,307.60 = 122,958.40 : x
  2. Step 2: Convert to fraction form
    137,732.80/206,307.60 = 122,958.40/x
  3. Step 3: Cross multiply
    137,732.80x = 206,307.60 × 122,958.40
  4. Step 4: Simplify right side
    137,732.80x = 25,367,252,403.84
  5. Step 5: Solve for x
    x = 25,367,252,403.84/137,732.80
  6. Step 6: Final answer
    x = 184,177.28

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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.