Home / 165,456.24-247,962.96-81,087.36

Finding the Fourth Proportional to 165,456.24, 247,962.96 and 81,087.36

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Solution

The fourth proportional to 165,456.24, 247,962.96 and 81,087.36 is: 121,522.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,456.24 : 247,962.96 = 81,087.36 : x
  2. Step 2: Convert to fraction form
    165,456.24/247,962.96 = 81,087.36/x
  3. Step 3: Cross multiply
    165,456.24x = 247,962.96 × 81,087.36
  4. Step 4: Simplify right side
    165,456.24x = 20,106,661,804.19
  5. Step 5: Solve for x
    x = 20,106,661,804.19/165,456.24
  6. Step 6: Final answer
    x = 121,522.54

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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.