Home / 107,876.85-161,816.78-41,320.36

Finding the Fourth Proportional to 107,876.85, 161,816.78 and 41,320.36

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Solution

The fourth proportional to 107,876.85, 161,816.78 and 41,320.36 is: 61,981.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,876.85 : 161,816.78 = 41,320.36 : x
  2. Step 2: Convert to fraction form
    107,876.85/161,816.78 = 41,320.36/x
  3. Step 3: Cross multiply
    107,876.85x = 161,816.78 × 41,320.36
  4. Step 4: Simplify right side
    107,876.85x = 6,686,327,603.64
  5. Step 5: Solve for x
    x = 6,686,327,603.64/107,876.85
  6. Step 6: Final answer
    x = 61,981.12

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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.