Home / 206,780.61-310,172.55-113,235.33

Finding the Fourth Proportional to 206,780.61, 310,172.55 and 113,235.33

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Solution

The fourth proportional to 206,780.61, 310,172.55 and 113,235.33 is: 169,853.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,780.61 : 310,172.55 = 113,235.33 : x
  2. Step 2: Convert to fraction form
    206,780.61/310,172.55 = 113,235.33/x
  3. Step 3: Cross multiply
    206,780.61x = 310,172.55 × 113,235.33
  4. Step 4: Simplify right side
    206,780.61x = 35,122,491,056.19
  5. Step 5: Solve for x
    x = 35,122,491,056.19/206,780.61
  6. Step 6: Final answer
    x = 169,853.89

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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.