Home / 117,864.54-162,648.09-64,149.66

Finding the Fourth Proportional to 117,864.54, 162,648.09 and 64,149.66

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Solution

The fourth proportional to 117,864.54, 162,648.09 and 64,149.66 is: 88,523.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,864.54 : 162,648.09 = 64,149.66 : x
  2. Step 2: Convert to fraction form
    117,864.54/162,648.09 = 64,149.66/x
  3. Step 3: Cross multiply
    117,864.54x = 162,648.09 × 64,149.66
  4. Step 4: Simplify right side
    117,864.54x = 10,433,819,673.15
  5. Step 5: Solve for x
    x = 10,433,819,673.15/117,864.54
  6. Step 6: Final answer
    x = 88,523.82

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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.