Home / 135,344.50-186,732.46-78,744.94

Finding the Fourth Proportional to 135,344.50, 186,732.46 and 78,744.94

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Solution

The fourth proportional to 135,344.50, 186,732.46 and 78,744.94 is: 108,643.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,344.50 : 186,732.46 = 78,744.94 : x
  2. Step 2: Convert to fraction form
    135,344.50/186,732.46 = 78,744.94/x
  3. Step 3: Cross multiply
    135,344.50x = 186,732.46 × 78,744.94
  4. Step 4: Simplify right side
    135,344.50x = 14,704,236,358.75
  5. Step 5: Solve for x
    x = 14,704,236,358.75/135,344.50
  6. Step 6: Final answer
    x = 108,643.03

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1.5x scale

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.