Home / 154,144.36-231,263.74-138,248.92

Finding the Fourth Proportional to 154,144.36, 231,263.74 and 138,248.92

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Solution

The fourth proportional to 154,144.36, 231,263.74 and 138,248.92 is: 207,415.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,144.36 : 231,263.74 = 138,248.92 : x
  2. Step 2: Convert to fraction form
    154,144.36/231,263.74 = 138,248.92/x
  3. Step 3: Cross multiply
    154,144.36x = 231,263.74 × 138,248.92
  4. Step 4: Simplify right side
    154,144.36x = 31,971,962,290.16
  5. Step 5: Solve for x
    x = 31,971,962,290.16/154,144.36
  6. Step 6: Final answer
    x = 207,415.71

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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.