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Finding the Fourth Proportional to 146,212.31, 201,773.63 and 79,144.31

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Solution

The fourth proportional to 146,212.31, 201,773.63 and 79,144.31 is: 109,219.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,212.31 : 201,773.63 = 79,144.31 : x
  2. Step 2: Convert to fraction form
    146,212.31/201,773.63 = 79,144.31/x
  3. Step 3: Cross multiply
    146,212.31x = 201,773.63 × 79,144.31
  4. Step 4: Simplify right side
    146,212.31x = 15,969,235,424.84
  5. Step 5: Solve for x
    x = 15,969,235,424.84/146,212.31
  6. Step 6: Final answer
    x = 109,219.50

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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.