Home / 135,679.84-187,235.39-75,240.73

Finding the Fourth Proportional to 135,679.84, 187,235.39 and 75,240.73

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Solution

The fourth proportional to 135,679.84, 187,235.39 and 75,240.73 is: 103,830.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,679.84 : 187,235.39 = 75,240.73 : x
  2. Step 2: Convert to fraction form
    135,679.84/187,235.39 = 75,240.73/x
  3. Step 3: Cross multiply
    135,679.84x = 187,235.39 × 75,240.73
  4. Step 4: Simplify right side
    135,679.84x = 14,087,727,425.43
  5. Step 5: Solve for x
    x = 14,087,727,425.43/135,679.84
  6. Step 6: Final answer
    x = 103,830.66

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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.