Home / 149,153.83-205,836.96-84,625.79

Finding the Fourth Proportional to 149,153.83, 205,836.96 and 84,625.79

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Solution

The fourth proportional to 149,153.83, 205,836.96 and 84,625.79 is: 116,786.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,153.83 : 205,836.96 = 84,625.79 : x
  2. Step 2: Convert to fraction form
    149,153.83/205,836.96 = 84,625.79/x
  3. Step 3: Cross multiply
    149,153.83x = 205,836.96 × 84,625.79
  4. Step 4: Simplify right side
    149,153.83x = 17,419,114,390.61
  5. Step 5: Solve for x
    x = 17,419,114,390.61/149,153.83
  6. Step 6: Final answer
    x = 116,786.24

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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.