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Finding the Fourth Proportional to 146,213.94, 201,775.88 and 79,145.94

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Solution

The fourth proportional to 146,213.94, 201,775.88 and 79,145.94 is: 109,221.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,213.94 : 201,775.88 = 79,145.94 : x
  2. Step 2: Convert to fraction form
    146,213.94/201,775.88 = 79,145.94/x
  3. Step 3: Cross multiply
    146,213.94x = 201,775.88 × 79,145.94
  4. Step 4: Simplify right side
    146,213.94x = 15,969,741,296.20
  5. Step 5: Solve for x
    x = 15,969,741,296.20/146,213.94
  6. Step 6: Final answer
    x = 109,221.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.