Home / 135,195.89-186,566.90-74,764.92

Finding the Fourth Proportional to 135,195.89, 186,566.90 and 74,764.92

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Solution

The fourth proportional to 135,195.89, 186,566.90 and 74,764.92 is: 103,173.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,195.89 : 186,566.90 = 74,764.92 : x
  2. Step 2: Convert to fraction form
    135,195.89/186,566.90 = 74,764.92/x
  3. Step 3: Cross multiply
    135,195.89x = 186,566.90 × 74,764.92
  4. Step 4: Simplify right side
    135,195.89x = 13,948,659,678.95
  5. Step 5: Solve for x
    x = 13,948,659,678.95/135,195.89
  6. Step 6: Final answer
    x = 103,173.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.