Home / 82,933.70-124,400.55-68,159.30

Finding the Fourth Proportional to 82,933.70, 124,400.55 and 68,159.30

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Solution

The fourth proportional to 82,933.70, 124,400.55 and 68,159.30 is: 102,238.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,933.70 : 124,400.55 = 68,159.30 : x
  2. Step 2: Convert to fraction form
    82,933.70/124,400.55 = 68,159.30/x
  3. Step 3: Cross multiply
    82,933.70x = 124,400.55 × 68,159.30
  4. Step 4: Simplify right side
    82,933.70x = 8,479,054,407.62
  5. Step 5: Solve for x
    x = 8,479,054,407.62/82,933.70
  6. Step 6: Final answer
    x = 102,238.95

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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.