Home / 165,118.08-247,647.78-75,139.94

Finding the Fourth Proportional to 165,118.08, 247,647.78 and 75,139.94

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Solution

The fourth proportional to 165,118.08, 247,647.78 and 75,139.94 is: 112,696.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,118.08 : 247,647.78 = 75,139.94 : x
  2. Step 2: Convert to fraction form
    165,118.08/247,647.78 = 75,139.94/x
  3. Step 3: Cross multiply
    165,118.08x = 247,647.78 × 75,139.94
  4. Step 4: Simplify right side
    165,118.08x = 18,608,238,092.09
  5. Step 5: Solve for x
    x = 18,608,238,092.09/165,118.08
  6. Step 6: Final answer
    x = 112,696.55

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1.5x scale

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.