Home / 214,983.80-322,616.18-81,865.36

Finding the Fourth Proportional to 214,983.80, 322,616.18 and 81,865.36

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Solution

The fourth proportional to 214,983.80, 322,616.18 and 81,865.36 is: 122,851.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,983.80 : 322,616.18 = 81,865.36 : x
  2. Step 2: Convert to fraction form
    214,983.80/322,616.18 = 81,865.36/x
  3. Step 3: Cross multiply
    214,983.80x = 322,616.18 × 81,865.36
  4. Step 4: Simplify right side
    214,983.80x = 26,411,089,717.52
  5. Step 5: Solve for x
    x = 26,411,089,717.52/214,983.80
  6. Step 6: Final answer
    x = 122,851.53

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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.