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Finding the Fourth Proportional to 162,304.95, 223,976.25 and 90,684.99

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Solution

The fourth proportional to 162,304.95, 223,976.25 and 90,684.99 is: 125,142.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,304.95 : 223,976.25 = 90,684.99 : x
  2. Step 2: Convert to fraction form
    162,304.95/223,976.25 = 90,684.99/x
  3. Step 3: Cross multiply
    162,304.95x = 223,976.25 × 90,684.99
  4. Step 4: Simplify right side
    162,304.95x = 20,311,283,991.49
  5. Step 5: Solve for x
    x = 20,311,283,991.49/162,304.95
  6. Step 6: Final answer
    x = 125,142.73

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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.