Home / 99,841.17-137,777.19-54,518.34

Finding the Fourth Proportional to 99,841.17, 137,777.19 and 54,518.34

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Solution

The fourth proportional to 99,841.17, 137,777.19 and 54,518.34 is: 75,233.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,841.17 : 137,777.19 = 54,518.34 : x
  2. Step 2: Convert to fraction form
    99,841.17/137,777.19 = 54,518.34/x
  3. Step 3: Cross multiply
    99,841.17x = 137,777.19 × 54,518.34
  4. Step 4: Simplify right side
    99,841.17x = 7,511,383,688.66
  5. Step 5: Solve for x
    x = 7,511,383,688.66/99,841.17
  6. Step 6: Final answer
    x = 75,233.33

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1.5x scale

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.