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Finding the Fourth Proportional to 159,162.50, 219,648.41 and 87,544.40

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Solution

The fourth proportional to 159,162.50, 219,648.41 and 87,544.40 is: 120,813.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,162.50 : 219,648.41 = 87,544.40 : x
  2. Step 2: Convert to fraction form
    159,162.50/219,648.41 = 87,544.40/x
  3. Step 3: Cross multiply
    159,162.50x = 219,648.41 × 87,544.40
  4. Step 4: Simplify right side
    159,162.50x = 19,228,987,826.68
  5. Step 5: Solve for x
    x = 19,228,987,826.68/159,162.50
  6. Step 6: Final answer
    x = 120,813.56

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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.