Home / 135,276.83-186,679.56-74,847.48

Finding the Fourth Proportional to 135,276.83, 186,679.56 and 74,847.48

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Solution

The fourth proportional to 135,276.83, 186,679.56 and 74,847.48 is: 103,288.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,276.83 : 186,679.56 = 74,847.48 : x
  2. Step 2: Convert to fraction form
    135,276.83/186,679.56 = 74,847.48/x
  3. Step 3: Cross multiply
    135,276.83x = 186,679.56 × 74,847.48
  4. Step 4: Simplify right side
    135,276.83x = 13,972,494,633.51
  5. Step 5: Solve for x
    x = 13,972,494,633.51/135,276.83
  6. Step 6: Final answer
    x = 103,288.16

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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.