Home / 154,073.10-231,109.65-136,965.90

Finding the Fourth Proportional to 154,073.10, 231,109.65 and 136,965.90

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Solution

The fourth proportional to 154,073.10, 231,109.65 and 136,965.90 is: 205,448.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,073.10 : 231,109.65 = 136,965.90 : x
  2. Step 2: Convert to fraction form
    154,073.10/231,109.65 = 136,965.90/x
  3. Step 3: Cross multiply
    154,073.10x = 231,109.65 × 136,965.90
  4. Step 4: Simplify right side
    154,073.10x = 31,654,141,210.94
  5. Step 5: Solve for x
    x = 31,654,141,210.94/154,073.10
  6. Step 6: Final answer
    x = 205,448.85

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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.