Home / 107,631.14-161,446.85-51,458.05

Finding the Fourth Proportional to 107,631.14, 161,446.85 and 51,458.05

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Solution

The fourth proportional to 107,631.14, 161,446.85 and 51,458.05 is: 77,187.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,631.14 : 161,446.85 = 51,458.05 : x
  2. Step 2: Convert to fraction form
    107,631.14/161,446.85 = 51,458.05/x
  3. Step 3: Cross multiply
    107,631.14x = 161,446.85 × 51,458.05
  4. Step 4: Simplify right side
    107,631.14x = 8,307,739,015.12
  5. Step 5: Solve for x
    x = 8,307,739,015.12/107,631.14
  6. Step 6: Final answer
    x = 77,187.13

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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.