Home / 203,810.28-305,748.84-83,834.72

Finding the Fourth Proportional to 203,810.28, 305,748.84 and 83,834.72

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Solution

The fourth proportional to 203,810.28, 305,748.84 and 83,834.72 is: 125,765.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,810.28 : 305,748.84 = 83,834.72 : x
  2. Step 2: Convert to fraction form
    203,810.28/305,748.84 = 83,834.72/x
  3. Step 3: Cross multiply
    203,810.28x = 305,748.84 × 83,834.72
  4. Step 4: Simplify right side
    203,810.28x = 25,632,366,862.98
  5. Step 5: Solve for x
    x = 25,632,366,862.98/203,810.28
  6. Step 6: Final answer
    x = 125,765.82

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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.