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Finding the Fourth Proportional to 169,992.27, 254,816.28 and 85,497.12

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Solution

The fourth proportional to 169,992.27, 254,816.28 and 85,497.12 is: 128,159.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,992.27 : 254,816.28 = 85,497.12 : x
  2. Step 2: Convert to fraction form
    169,992.27/254,816.28 = 85,497.12/x
  3. Step 3: Cross multiply
    169,992.27x = 254,816.28 × 85,497.12
  4. Step 4: Simplify right side
    169,992.27x = 21,786,058,069.11
  5. Step 5: Solve for x
    x = 21,786,058,069.11/169,992.27
  6. Step 6: Final answer
    x = 128,159.11

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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.