Home / 136,942.38-205,243.92-77,598.09

Finding the Fourth Proportional to 136,942.38, 205,243.92 and 77,598.09

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Solution

The fourth proportional to 136,942.38, 205,243.92 and 77,598.09 is: 116,301.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,942.38 : 205,243.92 = 77,598.09 : x
  2. Step 2: Convert to fraction form
    136,942.38/205,243.92 = 77,598.09/x
  3. Step 3: Cross multiply
    136,942.38x = 205,243.92 × 77,598.09
  4. Step 4: Simplify right side
    136,942.38x = 15,926,536,176.11
  5. Step 5: Solve for x
    x = 15,926,536,176.11/136,942.38
  6. Step 6: Final answer
    x = 116,301.00

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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.