Home / 108,979.10-163,369.62-97,169.30

Finding the Fourth Proportional to 108,979.10, 163,369.62 and 97,169.30

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Solution

The fourth proportional to 108,979.10, 163,369.62 and 97,169.30 is: 145,665.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,979.10 : 163,369.62 = 97,169.30 : x
  2. Step 2: Convert to fraction form
    108,979.10/163,369.62 = 97,169.30/x
  3. Step 3: Cross multiply
    108,979.10x = 163,369.62 × 97,169.30
  4. Step 4: Simplify right side
    108,979.10x = 15,874,510,799.82
  5. Step 5: Solve for x
    x = 15,874,510,799.82/108,979.10
  6. Step 6: Final answer
    x = 145,665.65

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1.5x scale

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.