Home / 149,947.53-206,932.37-81,963.01

Finding the Fourth Proportional to 149,947.53, 206,932.37 and 81,963.01

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Solution

The fourth proportional to 149,947.53, 206,932.37 and 81,963.01 is: 113,111.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,947.53 : 206,932.37 = 81,963.01 : x
  2. Step 2: Convert to fraction form
    149,947.53/206,932.37 = 81,963.01/x
  3. Step 3: Cross multiply
    149,947.53x = 206,932.37 × 81,963.01
  4. Step 4: Simplify right side
    149,947.53x = 16,960,799,911.63
  5. Step 5: Solve for x
    x = 16,960,799,911.63/149,947.53
  6. Step 6: Final answer
    x = 113,111.57

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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.