Home / 135,629.46-187,168.86-75,200.76

Finding the Fourth Proportional to 135,629.46, 187,168.86 and 75,200.76

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Solution

The fourth proportional to 135,629.46, 187,168.86 and 75,200.76 is: 103,777.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,629.46 : 187,168.86 = 75,200.76 : x
  2. Step 2: Convert to fraction form
    135,629.46/187,168.86 = 75,200.76/x
  3. Step 3: Cross multiply
    135,629.46x = 187,168.86 × 75,200.76
  4. Step 4: Simplify right side
    135,629.46x = 14,075,240,520.33
  5. Step 5: Solve for x
    x = 14,075,240,520.33/135,629.46
  6. Step 6: Final answer
    x = 103,777.16

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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.