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Finding the Fourth Proportional to 162,286.57, 223,960.04 and 90,674.47

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Solution

The fourth proportional to 162,286.57, 223,960.04 and 90,674.47 is: 125,133.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,286.57 : 223,960.04 = 90,674.47 : x
  2. Step 2: Convert to fraction form
    162,286.57/223,960.04 = 90,674.47/x
  3. Step 3: Cross multiply
    162,286.57x = 223,960.04 × 90,674.47
  4. Step 4: Simplify right side
    162,286.57x = 20,307,457,928.18
  5. Step 5: Solve for x
    x = 20,307,457,928.18/162,286.57
  6. Step 6: Final answer
    x = 125,133.32

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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.