Home / 115,905.40-173,639.40-108,032.20

Finding the Fourth Proportional to 115,905.40, 173,639.40 and 108,032.20

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Solution

The fourth proportional to 115,905.40, 173,639.40 and 108,032.20 is: 161,844.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,905.40 : 173,639.40 = 108,032.20 : x
  2. Step 2: Convert to fraction form
    115,905.40/173,639.40 = 108,032.20/x
  3. Step 3: Cross multiply
    115,905.40x = 173,639.40 × 108,032.20
  4. Step 4: Simplify right side
    115,905.40x = 18,758,646,388.68
  5. Step 5: Solve for x
    x = 18,758,646,388.68/115,905.40
  6. Step 6: Final answer
    x = 161,844.46

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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.