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Finding the Fourth Proportional to 135,465.30, 186,933.87 and 75,032.43

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Solution

The fourth proportional to 135,465.30, 186,933.87 and 75,032.43 is: 103,540.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,465.30 : 186,933.87 = 75,032.43 : x
  2. Step 2: Convert to fraction form
    135,465.30/186,933.87 = 75,032.43/x
  3. Step 3: Cross multiply
    135,465.30x = 186,933.87 × 75,032.43
  4. Step 4: Simplify right side
    135,465.30x = 14,026,102,515.40
  5. Step 5: Solve for x
    x = 14,026,102,515.40/135,465.30
  6. Step 6: Final answer
    x = 103,540.19

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Why These Related Problems?

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