Home / 135,847.93-187,432.20-84,912.50

Finding the Fourth Proportional to 135,847.93, 187,432.20 and 84,912.50

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Solution

The fourth proportional to 135,847.93, 187,432.20 and 84,912.50 is: 117,155.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,847.93 : 187,432.20 = 84,912.50 : x
  2. Step 2: Convert to fraction form
    135,847.93/187,432.20 = 84,912.50/x
  3. Step 3: Cross multiply
    135,847.93x = 187,432.20 × 84,912.50
  4. Step 4: Simplify right side
    135,847.93x = 15,915,335,745.34
  5. Step 5: Solve for x
    x = 15,915,335,745.34/135,847.93
  6. Step 6: Final answer
    x = 117,155.53

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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.