Home / 213,385.71-320,126.19-80,267.07

Finding the Fourth Proportional to 213,385.71, 320,126.19 and 80,267.07

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Solution

The fourth proportional to 213,385.71, 320,126.19 and 80,267.07 is: 120,418.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,385.71 : 320,126.19 = 80,267.07 : x
  2. Step 2: Convert to fraction form
    213,385.71/320,126.19 = 80,267.07/x
  3. Step 3: Cross multiply
    213,385.71x = 320,126.19 × 80,267.07
  4. Step 4: Simplify right side
    213,385.71x = 25,695,591,301.56
  5. Step 5: Solve for x
    x = 25,695,591,301.56/213,385.71
  6. Step 6: Final answer
    x = 120,418.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.