Home / 137,512.80-206,328.01-57,569.44

Finding the Fourth Proportional to 137,512.80, 206,328.01 and 57,569.44

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Solution

The fourth proportional to 137,512.80, 206,328.01 and 57,569.44 is: 86,378.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,512.80 : 206,328.01 = 57,569.44 : x
  2. Step 2: Convert to fraction form
    137,512.80/206,328.01 = 57,569.44/x
  3. Step 3: Cross multiply
    137,512.80x = 206,328.01 × 57,569.44
  4. Step 4: Simplify right side
    137,512.80x = 11,878,187,848.09
  5. Step 5: Solve for x
    x = 11,878,187,848.09/137,512.80
  6. Step 6: Final answer
    x = 86,378.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.