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Finding the Fourth Proportional to 146,380.88, 202,005.75 and 79,312.88

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Solution

The fourth proportional to 146,380.88, 202,005.75 and 79,312.88 is: 109,451.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,380.88 : 202,005.75 = 79,312.88 : x
  2. Step 2: Convert to fraction form
    146,380.88/202,005.75 = 79,312.88/x
  3. Step 3: Cross multiply
    146,380.88x = 202,005.75 × 79,312.88
  4. Step 4: Simplify right side
    146,380.88x = 16,021,656,799.03
  5. Step 5: Solve for x
    x = 16,021,656,799.03/146,380.88
  6. Step 6: Final answer
    x = 109,451.84

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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.