Home / 154,110.36-231,212.76-138,214.92

Finding the Fourth Proportional to 154,110.36, 231,212.76 and 138,214.92

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Solution

The fourth proportional to 154,110.36, 231,212.76 and 138,214.92 is: 207,364.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,110.36 : 231,212.76 = 138,214.92 : x
  2. Step 2: Convert to fraction form
    154,110.36/231,212.76 = 138,214.92/x
  3. Step 3: Cross multiply
    154,110.36x = 231,212.76 × 138,214.92
  4. Step 4: Simplify right side
    154,110.36x = 31,957,053,126.38
  5. Step 5: Solve for x
    x = 31,957,053,126.38/154,110.36
  6. Step 6: Final answer
    x = 207,364.73

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1.5x scale

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.