Home / 159,308.20-219,843.60-87,686.69

Finding the Fourth Proportional to 159,308.20, 219,843.60 and 87,686.69

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Solution

The fourth proportional to 159,308.20, 219,843.60 and 87,686.69 is: 121,006.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,308.20 : 219,843.60 = 87,686.69 : x
  2. Step 2: Convert to fraction form
    159,308.20/219,843.60 = 87,686.69/x
  3. Step 3: Cross multiply
    159,308.20x = 219,843.60 × 87,686.69
  4. Step 4: Simplify right side
    159,308.20x = 19,277,357,601.68
  5. Step 5: Solve for x
    x = 19,277,357,601.68/159,308.20
  6. Step 6: Final answer
    x = 121,006.69

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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.