Home / 149,054.13-205,634.00-84,509.78

Finding the Fourth Proportional to 149,054.13, 205,634.00 and 84,509.78

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Solution

The fourth proportional to 149,054.13, 205,634.00 and 84,509.78 is: 116,589.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,054.13 : 205,634.00 = 84,509.78 : x
  2. Step 2: Convert to fraction form
    149,054.13/205,634.00 = 84,509.78/x
  3. Step 3: Cross multiply
    149,054.13x = 205,634.00 × 84,509.78
  4. Step 4: Simplify right side
    149,054.13x = 17,378,083,283.62
  5. Step 5: Solve for x
    x = 17,378,083,283.62/149,054.13
  6. Step 6: Final answer
    x = 116,589.08

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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.