Home / 149,911.28-206,903.16-89,485.04

Finding the Fourth Proportional to 149,911.28, 206,903.16 and 89,485.04

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Solution

The fourth proportional to 149,911.28, 206,903.16 and 89,485.04 is: 123,504.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,911.28 : 206,903.16 = 89,485.04 : x
  2. Step 2: Convert to fraction form
    149,911.28/206,903.16 = 89,485.04/x
  3. Step 3: Cross multiply
    149,911.28x = 206,903.16 × 89,485.04
  4. Step 4: Simplify right side
    149,911.28x = 18,514,737,548.73
  5. Step 5: Solve for x
    x = 18,514,737,548.73/149,911.28
  6. Step 6: Final answer
    x = 123,504.63

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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.