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Finding the Fourth Proportional to 146,168.30, 201,712.85 and 79,100.30

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Solution

The fourth proportional to 146,168.30, 201,712.85 and 79,100.30 is: 109,158.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,168.30 : 201,712.85 = 79,100.30 : x
  2. Step 2: Convert to fraction form
    146,168.30/201,712.85 = 79,100.30/x
  3. Step 3: Cross multiply
    146,168.30x = 201,712.85 × 79,100.30
  4. Step 4: Simplify right side
    146,168.30x = 15,955,545,544.79
  5. Step 5: Solve for x
    x = 15,955,545,544.79/146,168.30
  6. Step 6: Final answer
    x = 109,158.73

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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.