Home / 213,457.08-320,185.61-80,367.19

Finding the Fourth Proportional to 213,457.08, 320,185.61 and 80,367.19

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Solution

The fourth proportional to 213,457.08, 320,185.61 and 80,367.19 is: 120,550.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,457.08 : 320,185.61 = 80,367.19 : x
  2. Step 2: Convert to fraction form
    213,457.08/320,185.61 = 80,367.19/x
  3. Step 3: Cross multiply
    213,457.08x = 320,185.61 × 80,367.19
  4. Step 4: Simplify right side
    213,457.08x = 25,732,417,754.14
  5. Step 5: Solve for x
    x = 25,732,417,754.14/213,457.08
  6. Step 6: Final answer
    x = 120,550.78

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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.