Home / 149,827.50-206,762.66-81,845.42

Finding the Fourth Proportional to 149,827.50, 206,762.66 and 81,845.42

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Solution

The fourth proportional to 149,827.50, 206,762.66 and 81,845.42 is: 112,947.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,827.50 : 206,762.66 = 81,845.42 : x
  2. Step 2: Convert to fraction form
    149,827.50/206,762.66 = 81,845.42/x
  3. Step 3: Cross multiply
    149,827.50x = 206,762.66 × 81,845.42
  4. Step 4: Simplify right side
    149,827.50x = 16,922,576,748.02
  5. Step 5: Solve for x
    x = 16,922,576,748.02/149,827.50
  6. Step 6: Final answer
    x = 112,947.07

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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.