Home / 133,016.40-199,534.20-80,312.40

Finding the Fourth Proportional to 133,016.40, 199,534.20 and 80,312.40

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Solution

The fourth proportional to 133,016.40, 199,534.20 and 80,312.40 is: 120,474.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,016.40 : 199,534.20 = 80,312.40 : x
  2. Step 2: Convert to fraction form
    133,016.40/199,534.20 = 80,312.40/x
  3. Step 3: Cross multiply
    133,016.40x = 199,534.20 × 80,312.40
  4. Step 4: Simplify right side
    133,016.40x = 16,025,070,484.08
  5. Step 5: Solve for x
    x = 16,025,070,484.08/133,016.40
  6. Step 6: Final answer
    x = 120,474.40

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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.