Home / 154,118.75-231,196.80-54,258.50

Finding the Fourth Proportional to 154,118.75, 231,196.80 and 54,258.50

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Solution

The fourth proportional to 154,118.75, 231,196.80 and 54,258.50 is: 81,394.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,118.75 : 231,196.80 = 54,258.50 : x
  2. Step 2: Convert to fraction form
    154,118.75/231,196.80 = 54,258.50/x
  3. Step 3: Cross multiply
    154,118.75x = 231,196.80 × 54,258.50
  4. Step 4: Simplify right side
    154,118.75x = 12,544,392,150.79
  5. Step 5: Solve for x
    x = 12,544,392,150.79/154,118.75
  6. Step 6: Final answer
    x = 81,394.33

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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.