Home / 135,529.80-187,028.64-75,099.12

Finding the Fourth Proportional to 135,529.80, 187,028.64 and 75,099.12

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Solution

The fourth proportional to 135,529.80, 187,028.64 and 75,099.12 is: 103,635.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,529.80 : 187,028.64 = 75,099.12 : x
  2. Step 2: Convert to fraction form
    135,529.80/187,028.64 = 75,099.12/x
  3. Step 3: Cross multiply
    135,529.80x = 187,028.64 × 75,099.12
  4. Step 4: Simplify right side
    135,529.80x = 14,045,686,278.80
  5. Step 5: Solve for x
    x = 14,045,686,278.80/135,529.80
  6. Step 6: Final answer
    x = 103,635.41

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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.