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Finding the Fourth Proportional to 163,572.63, 225,728.96 and 90,976.19

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Solution

The fourth proportional to 163,572.63, 225,728.96 and 90,976.19 is: 125,546.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,572.63 : 225,728.96 = 90,976.19 : x
  2. Step 2: Convert to fraction form
    163,572.63/225,728.96 = 90,976.19/x
  3. Step 3: Cross multiply
    163,572.63x = 225,728.96 × 90,976.19
  4. Step 4: Simplify right side
    163,572.63x = 20,535,959,169.94
  5. Step 5: Solve for x
    x = 20,535,959,169.94/163,572.63
  6. Step 6: Final answer
    x = 125,546.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.