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Finding the Fourth Proportional to 135,170.37, 186,527.57 and 74,737.37

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Solution

The fourth proportional to 135,170.37, 186,527.57 and 74,737.37 is: 103,133.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,170.37 : 186,527.57 = 74,737.37 : x
  2. Step 2: Convert to fraction form
    135,170.37/186,527.57 = 74,737.37/x
  3. Step 3: Cross multiply
    135,170.37x = 186,527.57 × 74,737.37
  4. Step 4: Simplify right side
    135,170.37x = 13,940,580,106.92
  5. Step 5: Solve for x
    x = 13,940,580,106.92/135,170.37
  6. Step 6: Final answer
    x = 103,133.40

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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.