Home / 139,504.19-209,190.66-97,431.78

Finding the Fourth Proportional to 139,504.19, 209,190.66 and 97,431.78

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Solution

The fourth proportional to 139,504.19, 209,190.66 and 97,431.78 is: 146,101.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,504.19 : 209,190.66 = 97,431.78 : x
  2. Step 2: Convert to fraction form
    139,504.19/209,190.66 = 97,431.78/x
  3. Step 3: Cross multiply
    139,504.19x = 209,190.66 × 97,431.78
  4. Step 4: Simplify right side
    139,504.19x = 20,381,816,830.06
  5. Step 5: Solve for x
    x = 20,381,816,830.06/139,504.19
  6. Step 6: Final answer
    x = 146,101.83

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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.