Home / 116,667.38-161,013.12-71,375.54

Finding the Fourth Proportional to 116,667.38, 161,013.12 and 71,375.54

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Solution

The fourth proportional to 116,667.38, 161,013.12 and 71,375.54 is: 98,505.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,667.38 : 161,013.12 = 71,375.54 : x
  2. Step 2: Convert to fraction form
    116,667.38/161,013.12 = 71,375.54/x
  3. Step 3: Cross multiply
    116,667.38x = 161,013.12 × 71,375.54
  4. Step 4: Simplify right side
    116,667.38x = 11,492,398,387.08
  5. Step 5: Solve for x
    x = 11,492,398,387.08/116,667.38
  6. Step 6: Final answer
    x = 98,505.67

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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.