Home / 107,428.60-161,148.37-39,945.68

Finding the Fourth Proportional to 107,428.60, 161,148.37 and 39,945.68

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Solution

The fourth proportional to 107,428.60, 161,148.37 and 39,945.68 is: 59,920.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,428.60 : 161,148.37 = 39,945.68 : x
  2. Step 2: Convert to fraction form
    107,428.60/161,148.37 = 39,945.68/x
  3. Step 3: Cross multiply
    107,428.60x = 161,148.37 × 39,945.68
  4. Step 4: Simplify right side
    107,428.60x = 6,437,181,220.54
  5. Step 5: Solve for x
    x = 6,437,181,220.54/107,428.60
  6. Step 6: Final answer
    x = 59,920.55

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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.