Home / 99,608.93-137,456.31-54,285.95

Finding the Fourth Proportional to 99,608.93, 137,456.31 and 54,285.95

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Solution

The fourth proportional to 99,608.93, 137,456.31 and 54,285.95 is: 74,912.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,608.93 : 137,456.31 = 54,285.95 : x
  2. Step 2: Convert to fraction form
    99,608.93/137,456.31 = 54,285.95/x
  3. Step 3: Cross multiply
    99,608.93x = 137,456.31 × 54,285.95
  4. Step 4: Simplify right side
    99,608.93x = 7,461,946,371.84
  5. Step 5: Solve for x
    x = 7,461,946,371.84/99,608.93
  6. Step 6: Final answer
    x = 74,912.42

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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.