Home / 108,815.68-150,180.30-61,071.65

Finding the Fourth Proportional to 108,815.68, 150,180.30 and 61,071.65

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Solution

The fourth proportional to 108,815.68, 150,180.30 and 61,071.65 is: 84,287.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,815.68 : 150,180.30 = 61,071.65 : x
  2. Step 2: Convert to fraction form
    108,815.68/150,180.30 = 61,071.65/x
  3. Step 3: Cross multiply
    108,815.68x = 150,180.30 × 61,071.65
  4. Step 4: Simplify right side
    108,815.68x = 9,171,757,967.59
  5. Step 5: Solve for x
    x = 9,171,757,967.59/108,815.68
  6. Step 6: Final answer
    x = 84,287.10

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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.