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Finding the Fourth Proportional to 133,632.30, 200,059.65 and 81,014.70

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Solution

The fourth proportional to 133,632.30, 200,059.65 and 81,014.70 is: 121,286.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,632.30 : 200,059.65 = 81,014.70 : x
  2. Step 2: Convert to fraction form
    133,632.30/200,059.65 = 81,014.70/x
  3. Step 3: Cross multiply
    133,632.30x = 200,059.65 × 81,014.70
  4. Step 4: Simplify right side
    133,632.30x = 16,207,772,526.86
  5. Step 5: Solve for x
    x = 16,207,772,526.86/133,632.30
  6. Step 6: Final answer
    x = 121,286.34

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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.