Home / 148,129.25-204,289.76-102,882.65

Finding the Fourth Proportional to 148,129.25, 204,289.76 and 102,882.65

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Solution

The fourth proportional to 148,129.25, 204,289.76 and 102,882.65 is: 141,888.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,129.25 : 204,289.76 = 102,882.65 : x
  2. Step 2: Convert to fraction form
    148,129.25/204,289.76 = 102,882.65/x
  3. Step 3: Cross multiply
    148,129.25x = 204,289.76 × 102,882.65
  4. Step 4: Simplify right side
    148,129.25x = 21,017,871,112.42
  5. Step 5: Solve for x
    x = 21,017,871,112.42/148,129.25
  6. Step 6: Final answer
    x = 141,888.73

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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.