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Finding the Fourth Proportional to 102,951.40, 154,427.10 and 43,772.20

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Solution

The fourth proportional to 102,951.40, 154,427.10 and 43,772.20 is: 65,658.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,951.40 : 154,427.10 = 43,772.20 : x
  2. Step 2: Convert to fraction form
    102,951.40/154,427.10 = 43,772.20/x
  3. Step 3: Cross multiply
    102,951.40x = 154,427.10 × 43,772.20
  4. Step 4: Simplify right side
    102,951.40x = 6,759,613,906.62
  5. Step 5: Solve for x
    x = 6,759,613,906.62/102,951.40
  6. Step 6: Final answer
    x = 65,658.30

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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.