Home / 122,839.11-183,877.29-66,539.43

Finding the Fourth Proportional to 122,839.11, 183,877.29 and 66,539.43

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Solution

The fourth proportional to 122,839.11, 183,877.29 and 66,539.43 is: 99,602.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,839.11 : 183,877.29 = 66,539.43 : x
  2. Step 2: Convert to fraction form
    122,839.11/183,877.29 = 66,539.43/x
  3. Step 3: Cross multiply
    122,839.11x = 183,877.29 × 66,539.43
  4. Step 4: Simplify right side
    122,839.11x = 12,235,090,066.54
  5. Step 5: Solve for x
    x = 12,235,090,066.54/122,839.11
  6. Step 6: Final answer
    x = 99,602.56

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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.