Home / 111,864.12-167,796-76,697.16

Finding the Fourth Proportional to 111,864.12, 167,796 and 76,697.16

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Solution

The fourth proportional to 111,864.12, 167,796 and 76,697.16 is: 115,045.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,864.12 : 167,796 = 76,697.16 : x
  2. Step 2: Convert to fraction form
    111,864.12/167,796 = 76,697.16/x
  3. Step 3: Cross multiply
    111,864.12x = 167,796 × 76,697.16
  4. Step 4: Simplify right side
    111,864.12x = 12,869,476,659.36
  5. Step 5: Solve for x
    x = 12,869,476,659.36/111,864.12
  6. Step 6: Final answer
    x = 115,045.62

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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.