Home / 149,231.72-205,943.46-81,252.37

Finding the Fourth Proportional to 149,231.72, 205,943.46 and 81,252.37

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Solution

The fourth proportional to 149,231.72, 205,943.46 and 81,252.37 is: 112,130.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,231.72 : 205,943.46 = 81,252.37 : x
  2. Step 2: Convert to fraction form
    149,231.72/205,943.46 = 81,252.37/x
  3. Step 3: Cross multiply
    149,231.72x = 205,943.46 × 81,252.37
  4. Step 4: Simplify right side
    149,231.72x = 16,733,393,462.35
  5. Step 5: Solve for x
    x = 16,733,393,462.35/149,231.72
  6. Step 6: Final answer
    x = 112,130.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.