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Finding the Fourth Proportional to 162,291.62, 223,958.30 and 90,672.17

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Solution

The fourth proportional to 162,291.62, 223,958.30 and 90,672.17 is: 125,125.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,291.62 : 223,958.30 = 90,672.17 : x
  2. Step 2: Convert to fraction form
    162,291.62/223,958.30 = 90,672.17/x
  3. Step 3: Cross multiply
    162,291.62x = 223,958.30 × 90,672.17
  4. Step 4: Simplify right side
    162,291.62x = 20,306,785,157.05
  5. Step 5: Solve for x
    x = 20,306,785,157.05/162,291.62
  6. Step 6: Final answer
    x = 125,125.29

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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.