Home / 149,682.40-206,556.56-89,221.86

Finding the Fourth Proportional to 149,682.40, 206,556.56 and 89,221.86

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Solution

The fourth proportional to 149,682.40, 206,556.56 and 89,221.86 is: 123,123.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,682.40 : 206,556.56 = 89,221.86 : x
  2. Step 2: Convert to fraction form
    149,682.40/206,556.56 = 89,221.86/x
  3. Step 3: Cross multiply
    149,682.40x = 206,556.56 × 89,221.86
  4. Step 4: Simplify right side
    149,682.40x = 18,429,360,478.40
  5. Step 5: Solve for x
    x = 18,429,360,478.40/149,682.40
  6. Step 6: Final answer
    x = 123,123.10

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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.