Home / 107,947.92-161,616.72-57,231.36

Finding the Fourth Proportional to 107,947.92, 161,616.72 and 57,231.36

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Solution

The fourth proportional to 107,947.92, 161,616.72 and 57,231.36 is: 85,685.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,947.92 : 161,616.72 = 57,231.36 : x
  2. Step 2: Convert to fraction form
    107,947.92/161,616.72 = 57,231.36/x
  3. Step 3: Cross multiply
    107,947.92x = 161,616.72 × 57,231.36
  4. Step 4: Simplify right side
    107,947.92x = 9,249,544,684.34
  5. Step 5: Solve for x
    x = 9,249,544,684.34/107,947.92
  6. Step 6: Final answer
    x = 85,685.25

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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.