Home / 104,181.49-155,827.19-86,979.83

Finding the Fourth Proportional to 104,181.49, 155,827.19 and 86,979.83

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Solution

The fourth proportional to 104,181.49, 155,827.19 and 86,979.83 is: 130,098.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,181.49 : 155,827.19 = 86,979.83 : x
  2. Step 2: Convert to fraction form
    104,181.49/155,827.19 = 86,979.83/x
  3. Step 3: Cross multiply
    104,181.49x = 155,827.19 × 86,979.83
  4. Step 4: Simplify right side
    104,181.49x = 13,553,821,933.89
  5. Step 5: Solve for x
    x = 13,553,821,933.89/104,181.49
  6. Step 6: Final answer
    x = 130,098.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.