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Finding the Fourth Proportional to 107,951.20, 161,926.80 and 100,952.80

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Solution

The fourth proportional to 107,951.20, 161,926.80 and 100,952.80 is: 151,429.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,951.20 : 161,926.80 = 100,952.80 : x
  2. Step 2: Convert to fraction form
    107,951.20/161,926.80 = 100,952.80/x
  3. Step 3: Cross multiply
    107,951.20x = 161,926.80 × 100,952.80
  4. Step 4: Simplify right side
    107,951.20x = 16,346,963,855.04
  5. Step 5: Solve for x
    x = 16,346,963,855.04/107,951.20
  6. Step 6: Final answer
    x = 151,429.20

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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.