Home / 284,163.98-426,242.25-81,765.36

Finding the Fourth Proportional to 284,163.98, 426,242.25 and 81,765.36

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Solution

The fourth proportional to 284,163.98, 426,242.25 and 81,765.36 is: 122,646.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,163.98 : 426,242.25 = 81,765.36 : x
  2. Step 2: Convert to fraction form
    284,163.98/426,242.25 = 81,765.36/x
  3. Step 3: Cross multiply
    284,163.98x = 426,242.25 × 81,765.36
  4. Step 4: Simplify right side
    284,163.98x = 34,851,851,018.46
  5. Step 5: Solve for x
    x = 34,851,851,018.46/284,163.98
  6. Step 6: Final answer
    x = 122,646.97

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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.