Home / 147,553.78-203,624.86-80,487.22

Finding the Fourth Proportional to 147,553.78, 203,624.86 and 80,487.22

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Solution

The fourth proportional to 147,553.78, 203,624.86 and 80,487.22 is: 111,072.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,553.78 : 203,624.86 = 80,487.22 : x
  2. Step 2: Convert to fraction form
    147,553.78/203,624.86 = 80,487.22/x
  3. Step 3: Cross multiply
    147,553.78x = 203,624.86 × 80,487.22
  4. Step 4: Simplify right side
    147,553.78x = 16,389,198,904.29
  5. Step 5: Solve for x
    x = 16,389,198,904.29/147,553.78
  6. Step 6: Final answer
    x = 111,072.71

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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.