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Finding the Fourth Proportional to 146,137.50, 201,669.75 and 79,069.50

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Solution

The fourth proportional to 146,137.50, 201,669.75 and 79,069.50 is: 109,115.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,137.50 : 201,669.75 = 79,069.50 : x
  2. Step 2: Convert to fraction form
    146,137.50/201,669.75 = 79,069.50/x
  3. Step 3: Cross multiply
    146,137.50x = 201,669.75 × 79,069.50
  4. Step 4: Simplify right side
    146,137.50x = 15,945,926,297.63
  5. Step 5: Solve for x
    x = 15,945,926,297.63/146,137.50
  6. Step 6: Final answer
    x = 109,115.91

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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.