Home / 149,205.52-205,903.03-81,226.27

Finding the Fourth Proportional to 149,205.52, 205,903.03 and 81,226.27

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Solution

The fourth proportional to 149,205.52, 205,903.03 and 81,226.27 is: 112,091.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,205.52 : 205,903.03 = 81,226.27 : x
  2. Step 2: Convert to fraction form
    149,205.52/205,903.03 = 81,226.27/x
  3. Step 3: Cross multiply
    149,205.52x = 205,903.03 × 81,226.27
  4. Step 4: Simplify right side
    149,205.52x = 16,724,733,672.95
  5. Step 5: Solve for x
    x = 16,724,733,672.95/149,205.52
  6. Step 6: Final answer
    x = 112,091.93

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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.