Home / 135,563.91-187,078.05-75,134.67

Finding the Fourth Proportional to 135,563.91, 187,078.05 and 75,134.67

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Solution

The fourth proportional to 135,563.91, 187,078.05 and 75,134.67 is: 103,685.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,563.91 : 187,078.05 = 75,134.67 : x
  2. Step 2: Convert to fraction form
    135,563.91/187,078.05 = 75,134.67/x
  3. Step 3: Cross multiply
    135,563.91x = 187,078.05 × 75,134.67
  4. Step 4: Simplify right side
    135,563.91x = 14,056,047,550.99
  5. Step 5: Solve for x
    x = 14,056,047,550.99/135,563.91
  6. Step 6: Final answer
    x = 103,685.76

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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.