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Finding the Fourth Proportional to 111,475.48, 153,963.93 and 73,405.21

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Solution

The fourth proportional to 111,475.48, 153,963.93 and 73,405.21 is: 101,383.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,475.48 : 153,963.93 = 73,405.21 : x
  2. Step 2: Convert to fraction form
    111,475.48/153,963.93 = 73,405.21/x
  3. Step 3: Cross multiply
    111,475.48x = 153,963.93 × 73,405.21
  4. Step 4: Simplify right side
    111,475.48x = 11,301,754,614.08
  5. Step 5: Solve for x
    x = 11,301,754,614.08/111,475.48
  6. Step 6: Final answer
    x = 101,383.32

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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.