Home / 136,621.47-188,537.25-76,192.17

Finding the Fourth Proportional to 136,621.47, 188,537.25 and 76,192.17

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Solution

The fourth proportional to 136,621.47, 188,537.25 and 76,192.17 is: 105,144.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,621.47 : 188,537.25 = 76,192.17 : x
  2. Step 2: Convert to fraction form
    136,621.47/188,537.25 = 76,192.17/x
  3. Step 3: Cross multiply
    136,621.47x = 188,537.25 × 76,192.17
  4. Step 4: Simplify right side
    136,621.47x = 14,365,062,203.33
  5. Step 5: Solve for x
    x = 14,365,062,203.33/136,621.47
  6. Step 6: Final answer
    x = 105,144.98

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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.