Home / 138,882.36-208,349.46-45,453.72

Finding the Fourth Proportional to 138,882.36, 208,349.46 and 45,453.72

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Solution

The fourth proportional to 138,882.36, 208,349.46 and 45,453.72 is: 68,189.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,882.36 : 208,349.46 = 45,453.72 : x
  2. Step 2: Convert to fraction form
    138,882.36/208,349.46 = 45,453.72/x
  3. Step 3: Cross multiply
    138,882.36x = 208,349.46 × 45,453.72
  4. Step 4: Simplify right side
    138,882.36x = 9,470,258,016.99
  5. Step 5: Solve for x
    x = 9,470,258,016.99/138,882.36
  6. Step 6: Final answer
    x = 68,189.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.