Home / 135,170.60-186,527.90-74,737.61

Finding the Fourth Proportional to 135,170.60, 186,527.90 and 74,737.61

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Solution

The fourth proportional to 135,170.60, 186,527.90 and 74,737.61 is: 103,133.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,170.60 : 186,527.90 = 74,737.61 : x
  2. Step 2: Convert to fraction form
    135,170.60/186,527.90 = 74,737.61/x
  3. Step 3: Cross multiply
    135,170.60x = 186,527.90 × 74,737.61
  4. Step 4: Simplify right side
    135,170.60x = 13,940,648,137.99
  5. Step 5: Solve for x
    x = 13,940,648,137.99/135,170.60
  6. Step 6: Final answer
    x = 103,133.73

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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.