Home / 135,628.38-187,168.50-75,199.92

Finding the Fourth Proportional to 135,628.38, 187,168.50 and 75,199.92

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Solution

The fourth proportional to 135,628.38, 187,168.50 and 75,199.92 is: 103,776.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,628.38 : 187,168.50 = 75,199.92 : x
  2. Step 2: Convert to fraction form
    135,628.38/187,168.50 = 75,199.92/x
  3. Step 3: Cross multiply
    135,628.38x = 187,168.50 × 75,199.92
  4. Step 4: Simplify right side
    135,628.38x = 14,075,056,226.52
  5. Step 5: Solve for x
    x = 14,075,056,226.52/135,628.38
  6. Step 6: Final answer
    x = 103,776.63

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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.