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Finding the Fourth Proportional to 159,103, 219,556.52 and 87,482.52

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Solution

The fourth proportional to 159,103, 219,556.52 and 87,482.52 is: 120,722.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,103 : 219,556.52 = 87,482.52 : x
  2. Step 2: Convert to fraction form
    159,103/219,556.52 = 87,482.52/x
  3. Step 3: Cross multiply
    159,103x = 219,556.52 × 87,482.52
  4. Step 4: Simplify right side
    159,103x = 19,207,357,652.03
  5. Step 5: Solve for x
    x = 19,207,357,652.03/159,103
  6. Step 6: Final answer
    x = 120,722.79

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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.