Home / 149,747.55-206,659.98-81,770.85

Finding the Fourth Proportional to 149,747.55, 206,659.98 and 81,770.85

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Solution

The fourth proportional to 149,747.55, 206,659.98 and 81,770.85 is: 112,848.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,747.55 : 206,659.98 = 81,770.85 : x
  2. Step 2: Convert to fraction form
    149,747.55/206,659.98 = 81,770.85/x
  3. Step 3: Cross multiply
    149,747.55x = 206,659.98 × 81,770.85
  4. Step 4: Simplify right side
    149,747.55x = 16,898,762,225.58
  5. Step 5: Solve for x
    x = 16,898,762,225.58/149,747.55
  6. Step 6: Final answer
    x = 112,848.34

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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.