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Finding the Fourth Proportional to 132,956.40, 199,434.60 and 80,468.40

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Solution

The fourth proportional to 132,956.40, 199,434.60 and 80,468.40 is: 120,702.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,956.40 : 199,434.60 = 80,468.40 : x
  2. Step 2: Convert to fraction form
    132,956.40/199,434.60 = 80,468.40/x
  3. Step 3: Cross multiply
    132,956.40x = 199,434.60 × 80,468.40
  4. Step 4: Simplify right side
    132,956.40x = 16,048,183,166.64
  5. Step 5: Solve for x
    x = 16,048,183,166.64/132,956.40
  6. Step 6: Final answer
    x = 120,702.60

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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.