Home / 138,043.57-207,025.33-53,784.95

Finding the Fourth Proportional to 138,043.57, 207,025.33 and 53,784.95

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Solution

The fourth proportional to 138,043.57, 207,025.33 and 53,784.95 is: 80,661.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,043.57 : 207,025.33 = 53,784.95 : x
  2. Step 2: Convert to fraction form
    138,043.57/207,025.33 = 53,784.95/x
  3. Step 3: Cross multiply
    138,043.57x = 207,025.33 × 53,784.95
  4. Step 4: Simplify right side
    138,043.57x = 11,134,845,987.66
  5. Step 5: Solve for x
    x = 11,134,845,987.66/138,043.57
  6. Step 6: Final answer
    x = 80,661.83

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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.