Home / 148,986.38-205,598.22-81,004.70

Finding the Fourth Proportional to 148,986.38, 205,598.22 and 81,004.70

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Solution

The fourth proportional to 148,986.38, 205,598.22 and 81,004.70 is: 111,784.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,986.38 : 205,598.22 = 81,004.70 : x
  2. Step 2: Convert to fraction form
    148,986.38/205,598.22 = 81,004.70/x
  3. Step 3: Cross multiply
    148,986.38x = 205,598.22 × 81,004.70
  4. Step 4: Simplify right side
    148,986.38x = 16,654,422,131.63
  5. Step 5: Solve for x
    x = 16,654,422,131.63/148,986.38
  6. Step 6: Final answer
    x = 111,784.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.