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Finding the Fourth Proportional to 111,473.48, 153,961.17 and 73,403.21

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Solution

The fourth proportional to 111,473.48, 153,961.17 and 73,403.21 is: 101,380.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,473.48 : 153,961.17 = 73,403.21 : x
  2. Step 2: Convert to fraction form
    111,473.48/153,961.17 = 73,403.21/x
  3. Step 3: Cross multiply
    111,473.48x = 153,961.17 × 73,403.21
  4. Step 4: Simplify right side
    111,473.48x = 11,301,243,323.55
  5. Step 5: Solve for x
    x = 11,301,243,323.55/111,473.48
  6. Step 6: Final answer
    x = 101,380.56

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.