Home / 205,761.58-284,048.05-154,793.72

Finding the Fourth Proportional to 205,761.58, 284,048.05 and 154,793.72

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Solution

The fourth proportional to 205,761.58, 284,048.05 and 154,793.72 is: 213,688.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,761.58 : 284,048.05 = 154,793.72 : x
  2. Step 2: Convert to fraction form
    205,761.58/284,048.05 = 154,793.72/x
  3. Step 3: Cross multiply
    205,761.58x = 284,048.05 × 154,793.72
  4. Step 4: Simplify right side
    205,761.58x = 43,968,854,318.25
  5. Step 5: Solve for x
    x = 43,968,854,318.25/205,761.58
  6. Step 6: Final answer
    x = 213,688.36

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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.