Home / 149,522.88-206,346.54-81,543.57

Finding the Fourth Proportional to 149,522.88, 206,346.54 and 81,543.57

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Solution

The fourth proportional to 149,522.88, 206,346.54 and 81,543.57 is: 112,532.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,522.88 : 206,346.54 = 81,543.57 : x
  2. Step 2: Convert to fraction form
    149,522.88/206,346.54 = 81,543.57/x
  3. Step 3: Cross multiply
    149,522.88x = 206,346.54 × 81,543.57
  4. Step 4: Simplify right side
    149,522.88x = 16,826,233,528.75
  5. Step 5: Solve for x
    x = 16,826,233,528.75/149,522.88
  6. Step 6: Final answer
    x = 112,532.83

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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.