Home / 137,217.20-205,998.60-74,087.60

Finding the Fourth Proportional to 137,217.20, 205,998.60 and 74,087.60

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Solution

The fourth proportional to 137,217.20, 205,998.60 and 74,087.60 is: 111,224.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,217.20 : 205,998.60 = 74,087.60 : x
  2. Step 2: Convert to fraction form
    137,217.20/205,998.60 = 74,087.60/x
  3. Step 3: Cross multiply
    137,217.20x = 205,998.60 × 74,087.60
  4. Step 4: Simplify right side
    137,217.20x = 15,261,941,877.36
  5. Step 5: Solve for x
    x = 15,261,941,877.36/137,217.20
  6. Step 6: Final answer
    x = 111,224.70

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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.