Home / 213,457.83-320,186.74-80,367.94

Finding the Fourth Proportional to 213,457.83, 320,186.74 and 80,367.94

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Solution

The fourth proportional to 213,457.83, 320,186.74 and 80,367.94 is: 120,551.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,457.83 : 320,186.74 = 80,367.94 : x
  2. Step 2: Convert to fraction form
    213,457.83/320,186.74 = 80,367.94/x
  3. Step 3: Cross multiply
    213,457.83x = 320,186.74 × 80,367.94
  4. Step 4: Simplify right side
    213,457.83x = 25,732,748,709.12
  5. Step 5: Solve for x
    x = 25,732,748,709.12/213,457.83
  6. Step 6: Final answer
    x = 120,551.91

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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.