Home / 146,221.50-201,785.68-79,153.50

Finding the Fourth Proportional to 146,221.50, 201,785.68 and 79,153.50

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Solution

The fourth proportional to 146,221.50, 201,785.68 and 79,153.50 is: 109,231.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,221.50 : 201,785.68 = 79,153.50 : x
  2. Step 2: Convert to fraction form
    146,221.50/201,785.68 = 79,153.50/x
  3. Step 3: Cross multiply
    146,221.50x = 201,785.68 × 79,153.50
  4. Step 4: Simplify right side
    146,221.50x = 15,972,042,821.88
  5. Step 5: Solve for x
    x = 15,972,042,821.88/146,221.50
  6. Step 6: Final answer
    x = 109,231.84

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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.