Home / 132,822.78-183,290.11-72,392.16

Finding the Fourth Proportional to 132,822.78, 183,290.11 and 72,392.16

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Solution

The fourth proportional to 132,822.78, 183,290.11 and 72,392.16 is: 99,898.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,822.78 : 183,290.11 = 72,392.16 : x
  2. Step 2: Convert to fraction form
    132,822.78/183,290.11 = 72,392.16/x
  3. Step 3: Cross multiply
    132,822.78x = 183,290.11 × 72,392.16
  4. Step 4: Simplify right side
    132,822.78x = 13,268,766,969.54
  5. Step 5: Solve for x
    x = 13,268,766,969.54/132,822.78
  6. Step 6: Final answer
    x = 99,898.28

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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.