Home / 139,087.28-208,659.96-45,585.68

Finding the Fourth Proportional to 139,087.28, 208,659.96 and 45,585.68

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Solution

The fourth proportional to 139,087.28, 208,659.96 and 45,585.68 is: 68,388.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,087.28 : 208,659.96 = 45,585.68 : x
  2. Step 2: Convert to fraction form
    139,087.28/208,659.96 = 45,585.68/x
  3. Step 3: Cross multiply
    139,087.28x = 208,659.96 × 45,585.68
  4. Step 4: Simplify right side
    139,087.28x = 9,511,906,165.37
  5. Step 5: Solve for x
    x = 9,511,906,165.37/139,087.28
  6. Step 6: Final answer
    x = 68,388.04

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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.