Home / 135,624.38-187,160.75-75,195.05

Finding the Fourth Proportional to 135,624.38, 187,160.75 and 75,195.05

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Solution

The fourth proportional to 135,624.38, 187,160.75 and 75,195.05 is: 103,768.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,624.38 : 187,160.75 = 75,195.05 : x
  2. Step 2: Convert to fraction form
    135,624.38/187,160.75 = 75,195.05/x
  3. Step 3: Cross multiply
    135,624.38x = 187,160.75 × 75,195.05
  4. Step 4: Simplify right side
    135,624.38x = 14,073,560,642.51
  5. Step 5: Solve for x
    x = 14,073,560,642.51/135,624.38
  6. Step 6: Final answer
    x = 103,768.67

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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.