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Finding the Fourth Proportional to 159,102.75, 219,556.17 and 87,482.27

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Solution

The fourth proportional to 159,102.75, 219,556.17 and 87,482.27 is: 120,722.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,102.75 : 219,556.17 = 87,482.27 : x
  2. Step 2: Convert to fraction form
    159,102.75/219,556.17 = 87,482.27/x
  3. Step 3: Cross multiply
    159,102.75x = 219,556.17 × 87,482.27
  4. Step 4: Simplify right side
    159,102.75x = 19,207,272,144.11
  5. Step 5: Solve for x
    x = 19,207,272,144.11/159,102.75
  6. Step 6: Final answer
    x = 120,722.44

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1.5x scale

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.