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Finding the Fourth Proportional to 135,452.40, 186,925.67 and 81,727.08

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Solution

The fourth proportional to 135,452.40, 186,925.67 and 81,727.08 is: 112,784.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,452.40 : 186,925.67 = 81,727.08 : x
  2. Step 2: Convert to fraction form
    135,452.40/186,925.67 = 81,727.08/x
  3. Step 3: Cross multiply
    135,452.40x = 186,925.67 × 81,727.08
  4. Step 4: Simplify right side
    135,452.40x = 15,276,888,842.73
  5. Step 5: Solve for x
    x = 15,276,888,842.73/135,452.40
  6. Step 6: Final answer
    x = 112,784.19

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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.