Home / 147,259.62-203,220.09-80,191.62

Finding the Fourth Proportional to 147,259.62, 203,220.09 and 80,191.62

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Solution

The fourth proportional to 147,259.62, 203,220.09 and 80,191.62 is: 110,665.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,259.62 : 203,220.09 = 80,191.62 : x
  2. Step 2: Convert to fraction form
    147,259.62/203,220.09 = 80,191.62/x
  3. Step 3: Cross multiply
    147,259.62x = 203,220.09 × 80,191.62
  4. Step 4: Simplify right side
    147,259.62x = 16,296,548,233.65
  5. Step 5: Solve for x
    x = 16,296,548,233.65/147,259.62
  6. Step 6: Final answer
    x = 110,665.42

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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.