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Finding the Fourth Proportional to 162,304.52, 223,976.08 and 90,685.12

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Solution

The fourth proportional to 162,304.52, 223,976.08 and 90,685.12 is: 125,143.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,304.52 : 223,976.08 = 90,685.12 : x
  2. Step 2: Convert to fraction form
    162,304.52/223,976.08 = 90,685.12/x
  3. Step 3: Cross multiply
    162,304.52x = 223,976.08 × 90,685.12
  4. Step 4: Simplify right side
    162,304.52x = 20,311,297,691.93
  5. Step 5: Solve for x
    x = 20,311,297,691.93/162,304.52
  6. Step 6: Final answer
    x = 125,143.14

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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.