Home / 138,770.01-191,507.27-85,044.66

Finding the Fourth Proportional to 138,770.01, 191,507.27 and 85,044.66

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Solution

The fourth proportional to 138,770.01, 191,507.27 and 85,044.66 is: 117,364.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,770.01 : 191,507.27 = 85,044.66 : x
  2. Step 2: Convert to fraction form
    138,770.01/191,507.27 = 85,044.66/x
  3. Step 3: Cross multiply
    138,770.01x = 191,507.27 × 85,044.66
  4. Step 4: Simplify right side
    138,770.01x = 16,286,670,664.68
  5. Step 5: Solve for x
    x = 16,286,670,664.68/138,770.01
  6. Step 6: Final answer
    x = 117,364.49

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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.