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Finding the Fourth Proportional to 100,855.40, 151,283.10 and 94,711.40

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Solution

The fourth proportional to 100,855.40, 151,283.10 and 94,711.40 is: 142,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,855.40 : 151,283.10 = 94,711.40 : x
  2. Step 2: Convert to fraction form
    100,855.40/151,283.10 = 94,711.40/x
  3. Step 3: Cross multiply
    100,855.40x = 151,283.10 × 94,711.40
  4. Step 4: Simplify right side
    100,855.40x = 14,328,234,197.34
  5. Step 5: Solve for x
    x = 14,328,234,197.34/100,855.40
  6. Step 6: Final answer
    x = 142,067.10

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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.