Home / 154,044.06-231,104.01-90,916.38

Finding the Fourth Proportional to 154,044.06, 231,104.01 and 90,916.38

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Solution

The fourth proportional to 154,044.06, 231,104.01 and 90,916.38 is: 136,396.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,044.06 : 231,104.01 = 90,916.38 : x
  2. Step 2: Convert to fraction form
    154,044.06/231,104.01 = 90,916.38/x
  3. Step 3: Cross multiply
    154,044.06x = 231,104.01 × 90,916.38
  4. Step 4: Simplify right side
    154,044.06x = 21,011,139,992.68
  5. Step 5: Solve for x
    x = 21,011,139,992.68/154,044.06
  6. Step 6: Final answer
    x = 136,396.95

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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.