Home / 107,929.80-161,829.90-55,441.80

Finding the Fourth Proportional to 107,929.80, 161,829.90 and 55,441.80

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Solution

The fourth proportional to 107,929.80, 161,829.90 and 55,441.80 is: 83,129.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,929.80 : 161,829.90 = 55,441.80 : x
  2. Step 2: Convert to fraction form
    107,929.80/161,829.90 = 55,441.80/x
  3. Step 3: Cross multiply
    107,929.80x = 161,829.90 × 55,441.80
  4. Step 4: Simplify right side
    107,929.80x = 8,972,140,949.82
  5. Step 5: Solve for x
    x = 8,972,140,949.82/107,929.80
  6. Step 6: Final answer
    x = 83,129.41

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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.