Home / 143,759.91-215,552.03-68,902.95

Finding the Fourth Proportional to 143,759.91, 215,552.03 and 68,902.95

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Solution

The fourth proportional to 143,759.91, 215,552.03 and 68,902.95 is: 103,312.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,759.91 : 215,552.03 = 68,902.95 : x
  2. Step 2: Convert to fraction form
    143,759.91/215,552.03 = 68,902.95/x
  3. Step 3: Cross multiply
    143,759.91x = 215,552.03 × 68,902.95
  4. Step 4: Simplify right side
    143,759.91x = 14,852,170,400.97
  5. Step 5: Solve for x
    x = 14,852,170,400.97/143,759.91
  6. Step 6: Final answer
    x = 103,312.32

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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.