Home / 140,836.59-211,273.25-74,279.16

Finding the Fourth Proportional to 140,836.59, 211,273.25 and 74,279.16

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Solution

The fourth proportional to 140,836.59, 211,273.25 and 74,279.16 is: 111,428.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,836.59 : 211,273.25 = 74,279.16 : x
  2. Step 2: Convert to fraction form
    140,836.59/211,273.25 = 74,279.16/x
  3. Step 3: Cross multiply
    140,836.59x = 211,273.25 × 74,279.16
  4. Step 4: Simplify right side
    140,836.59x = 15,693,199,169.07
  5. Step 5: Solve for x
    x = 15,693,199,169.07/140,836.59
  6. Step 6: Final answer
    x = 111,428.42

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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.