Home / 149,526.40-206,351.04-85,876.96

Finding the Fourth Proportional to 149,526.40, 206,351.04 and 85,876.96

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Solution

The fourth proportional to 149,526.40, 206,351.04 and 85,876.96 is: 118,512.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,526.40 : 206,351.04 = 85,876.96 : x
  2. Step 2: Convert to fraction form
    149,526.40/206,351.04 = 85,876.96/x
  3. Step 3: Cross multiply
    149,526.40x = 206,351.04 × 85,876.96
  4. Step 4: Simplify right side
    149,526.40x = 17,720,800,008.04
  5. Step 5: Solve for x
    x = 17,720,800,008.04/149,526.40
  6. Step 6: Final answer
    x = 118,512.85

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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.