Home / 134,796.02-186,028.79-74,378.30

Finding the Fourth Proportional to 134,796.02, 186,028.79 and 74,378.30

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Solution

The fourth proportional to 134,796.02, 186,028.79 and 74,378.30 is: 102,647.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,796.02 : 186,028.79 = 74,378.30 : x
  2. Step 2: Convert to fraction form
    134,796.02/186,028.79 = 74,378.30/x
  3. Step 3: Cross multiply
    134,796.02x = 186,028.79 × 74,378.30
  4. Step 4: Simplify right side
    134,796.02x = 13,836,503,849.22
  5. Step 5: Solve for x
    x = 13,836,503,849.22/134,796.02
  6. Step 6: Final answer
    x = 102,647.72

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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.