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Finding the Fourth Proportional to 135,019.62, 186,326.19 and 74,594.16

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Solution

The fourth proportional to 135,019.62, 186,326.19 and 74,594.16 is: 102,939.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,019.62 : 186,326.19 = 74,594.16 : x
  2. Step 2: Convert to fraction form
    135,019.62/186,326.19 = 74,594.16/x
  3. Step 3: Cross multiply
    135,019.62x = 186,326.19 × 74,594.16
  4. Step 4: Simplify right side
    135,019.62x = 13,898,845,629.05
  5. Step 5: Solve for x
    x = 13,898,845,629.05/135,019.62
  6. Step 6: Final answer
    x = 102,939.45

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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.