Home / 203,366.20-305,035.91-70,248.36

Finding the Fourth Proportional to 203,366.20, 305,035.91 and 70,248.36

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Solution

The fourth proportional to 203,366.20, 305,035.91 and 70,248.36 is: 105,367.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,366.20 : 305,035.91 = 70,248.36 : x
  2. Step 2: Convert to fraction form
    203,366.20/305,035.91 = 70,248.36/x
  3. Step 3: Cross multiply
    203,366.20x = 305,035.91 × 70,248.36
  4. Step 4: Simplify right side
    203,366.20x = 21,428,272,418.61
  5. Step 5: Solve for x
    x = 21,428,272,418.61/203,366.20
  6. Step 6: Final answer
    x = 105,367.91

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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.