Home / 108,186.12-162,362.88-70,736.04

Finding the Fourth Proportional to 108,186.12, 162,362.88 and 70,736.04

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Solution

The fourth proportional to 108,186.12, 162,362.88 and 70,736.04 is: 106,158.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,186.12 : 162,362.88 = 70,736.04 : x
  2. Step 2: Convert to fraction form
    108,186.12/162,362.88 = 70,736.04/x
  3. Step 3: Cross multiply
    108,186.12x = 162,362.88 × 70,736.04
  4. Step 4: Simplify right side
    108,186.12x = 11,484,907,174.20
  5. Step 5: Solve for x
    x = 11,484,907,174.20/108,186.12
  6. Step 6: Final answer
    x = 106,158.79

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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.