Home / 139,419.09-209,115.81-45,924.84

Finding the Fourth Proportional to 139,419.09, 209,115.81 and 45,924.84

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Solution

The fourth proportional to 139,419.09, 209,115.81 and 45,924.84 is: 68,883.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,419.09 : 209,115.81 = 45,924.84 : x
  2. Step 2: Convert to fraction form
    139,419.09/209,115.81 = 45,924.84/x
  3. Step 3: Cross multiply
    139,419.09x = 209,115.81 × 45,924.84
  4. Step 4: Simplify right side
    139,419.09x = 9,603,610,115.72
  5. Step 5: Solve for x
    x = 9,603,610,115.72/139,419.09
  6. Step 6: Final answer
    x = 68,883.04

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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.