Home / 133,026.40-199,549.20-80,322.40

Finding the Fourth Proportional to 133,026.40, 199,549.20 and 80,322.40

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Solution

The fourth proportional to 133,026.40, 199,549.20 and 80,322.40 is: 120,489.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,026.40 : 199,549.20 = 80,322.40 : x
  2. Step 2: Convert to fraction form
    133,026.40/199,549.20 = 80,322.40/x
  3. Step 3: Cross multiply
    133,026.40x = 199,549.20 × 80,322.40
  4. Step 4: Simplify right side
    133,026.40x = 16,028,270,662.08
  5. Step 5: Solve for x
    x = 16,028,270,662.08/133,026.40
  6. Step 6: Final answer
    x = 120,489.40

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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.