Home / 149,889.50-206,845.02-81,905.02

Finding the Fourth Proportional to 149,889.50, 206,845.02 and 81,905.02

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Solution

The fourth proportional to 149,889.50, 206,845.02 and 81,905.02 is: 113,027.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,889.50 : 206,845.02 = 81,905.02 : x
  2. Step 2: Convert to fraction form
    149,889.50/206,845.02 = 81,905.02/x
  3. Step 3: Cross multiply
    149,889.50x = 206,845.02 × 81,905.02
  4. Step 4: Simplify right side
    149,889.50x = 16,941,645,500.00
  5. Step 5: Solve for x
    x = 16,941,645,500.00/149,889.50
  6. Step 6: Final answer
    x = 113,027.57

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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.