Home / 149,263.75-205,983.98-82,195.75

Finding the Fourth Proportional to 149,263.75, 205,983.98 and 82,195.75

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Solution

The fourth proportional to 149,263.75, 205,983.98 and 82,195.75 is: 113,430.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,263.75 : 205,983.98 = 82,195.75 : x
  2. Step 2: Convert to fraction form
    149,263.75/205,983.98 = 82,195.75/x
  3. Step 3: Cross multiply
    149,263.75x = 205,983.98 × 82,195.75
  4. Step 4: Simplify right side
    149,263.75x = 16,931,007,724.09
  5. Step 5: Solve for x
    x = 16,931,007,724.09/149,263.75
  6. Step 6: Final answer
    x = 113,430.14

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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.