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Finding the Fourth Proportional to 154,169.72, 212,788.44 and 93,727.52

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Solution

The fourth proportional to 154,169.72, 212,788.44 and 93,727.52 is: 129,364.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,169.72 : 212,788.44 = 93,727.52 : x
  2. Step 2: Convert to fraction form
    154,169.72/212,788.44 = 93,727.52/x
  3. Step 3: Cross multiply
    154,169.72x = 212,788.44 × 93,727.52
  4. Step 4: Simplify right side
    154,169.72x = 19,944,132,765.87
  5. Step 5: Solve for x
    x = 19,944,132,765.87/154,169.72
  6. Step 6: Final answer
    x = 129,364.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.