Home / 159,288.06-219,817.55-86,691.23

Finding the Fourth Proportional to 159,288.06, 219,817.55 and 86,691.23

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Solution

The fourth proportional to 159,288.06, 219,817.55 and 86,691.23 is: 119,633.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,288.06 : 219,817.55 = 86,691.23 : x
  2. Step 2: Convert to fraction form
    159,288.06/219,817.55 = 86,691.23/x
  3. Step 3: Cross multiply
    159,288.06x = 219,817.55 × 86,691.23
  4. Step 4: Simplify right side
    159,288.06x = 19,056,252,252.54
  5. Step 5: Solve for x
    x = 19,056,252,252.54/159,288.06
  6. Step 6: Final answer
    x = 119,633.90

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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.