Home / 100,842.75-151,282.14-34,279.38

Finding the Fourth Proportional to 100,842.75, 151,282.14 and 34,279.38

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Solution

The fourth proportional to 100,842.75, 151,282.14 and 34,279.38 is: 51,425.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,842.75 : 151,282.14 = 34,279.38 : x
  2. Step 2: Convert to fraction form
    100,842.75/151,282.14 = 34,279.38/x
  3. Step 3: Cross multiply
    100,842.75x = 151,282.14 × 34,279.38
  4. Step 4: Simplify right side
    100,842.75x = 5,185,857,964.27
  5. Step 5: Solve for x
    x = 5,185,857,964.27/100,842.75
  6. Step 6: Final answer
    x = 51,425.19

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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.