Home / 111,781.32-167,688.66-36,909.38

Finding the Fourth Proportional to 111,781.32, 167,688.66 and 36,909.38

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Solution

The fourth proportional to 111,781.32, 167,688.66 and 36,909.38 is: 55,369.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,781.32 : 167,688.66 = 36,909.38 : x
  2. Step 2: Convert to fraction form
    111,781.32/167,688.66 = 36,909.38/x
  3. Step 3: Cross multiply
    111,781.32x = 167,688.66 × 36,909.38
  4. Step 4: Simplify right side
    111,781.32x = 6,189,284,473.63
  5. Step 5: Solve for x
    x = 6,189,284,473.63/111,781.32
  6. Step 6: Final answer
    x = 55,369.58

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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.