Home / 149,206.52-205,904.40-81,227.27

Finding the Fourth Proportional to 149,206.52, 205,904.40 and 81,227.27

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Solution

The fourth proportional to 149,206.52, 205,904.40 and 81,227.27 is: 112,093.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,206.52 : 205,904.40 = 81,227.27 : x
  2. Step 2: Convert to fraction form
    149,206.52/205,904.40 = 81,227.27/x
  3. Step 3: Cross multiply
    149,206.52x = 205,904.40 × 81,227.27
  4. Step 4: Simplify right side
    149,206.52x = 16,725,052,292.99
  5. Step 5: Solve for x
    x = 16,725,052,292.99/149,206.52
  6. Step 6: Final answer
    x = 112,093.31

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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.