Home / 119,816.62-165,345.98-66,103.90

Finding the Fourth Proportional to 119,816.62, 165,345.98 and 66,103.90

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Solution

The fourth proportional to 119,816.62, 165,345.98 and 66,103.90 is: 91,222.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,816.62 : 165,345.98 = 66,103.90 : x
  2. Step 2: Convert to fraction form
    119,816.62/165,345.98 = 66,103.90/x
  3. Step 3: Cross multiply
    119,816.62x = 165,345.98 × 66,103.90
  4. Step 4: Simplify right side
    119,816.62x = 10,930,013,383.44
  5. Step 5: Solve for x
    x = 10,930,013,383.44/119,816.62
  6. Step 6: Final answer
    x = 91,222.85

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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.