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Finding the Fourth Proportional to 162,195.54, 223,816.92 and 90,571.32

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Solution

The fourth proportional to 162,195.54, 223,816.92 and 90,571.32 is: 124,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,195.54 : 223,816.92 = 90,571.32 : x
  2. Step 2: Convert to fraction form
    162,195.54/223,816.92 = 90,571.32/x
  3. Step 3: Cross multiply
    162,195.54x = 223,816.92 × 90,571.32
  4. Step 4: Simplify right side
    162,195.54x = 20,271,393,882.73
  5. Step 5: Solve for x
    x = 20,271,393,882.73/162,195.54
  6. Step 6: Final answer
    x = 124,981.20

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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.