Home / 143,895.06-215,657.84-68,902.83

Finding the Fourth Proportional to 143,895.06, 215,657.84 and 68,902.83

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Solution

The fourth proportional to 143,895.06, 215,657.84 and 68,902.83 is: 103,265.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,895.06 : 215,657.84 = 68,902.83 : x
  2. Step 2: Convert to fraction form
    143,895.06/215,657.84 = 68,902.83/x
  3. Step 3: Cross multiply
    143,895.06x = 215,657.84 × 68,902.83
  4. Step 4: Simplify right side
    143,895.06x = 14,859,435,659.94
  5. Step 5: Solve for x
    x = 14,859,435,659.94/143,895.06
  6. Step 6: Final answer
    x = 103,265.78

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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.