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Finding the Fourth Proportional to 146,219.65, 201,783.15 and 79,151.65

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Solution

The fourth proportional to 146,219.65, 201,783.15 and 79,151.65 is: 109,229.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,219.65 : 201,783.15 = 79,151.65 : x
  2. Step 2: Convert to fraction form
    146,219.65/201,783.15 = 79,151.65/x
  3. Step 3: Cross multiply
    146,219.65x = 201,783.15 × 79,151.65
  4. Step 4: Simplify right side
    146,219.65x = 15,971,468,760.24
  5. Step 5: Solve for x
    x = 15,971,468,760.24/146,219.65
  6. Step 6: Final answer
    x = 109,229.29

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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.