Home / 134,629.80-185,788.26-74,200.50

Finding the Fourth Proportional to 134,629.80, 185,788.26 and 74,200.50

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Solution

The fourth proportional to 134,629.80, 185,788.26 and 74,200.50 is: 102,396.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,629.80 : 185,788.26 = 74,200.50 : x
  2. Step 2: Convert to fraction form
    134,629.80/185,788.26 = 74,200.50/x
  3. Step 3: Cross multiply
    134,629.80x = 185,788.26 × 74,200.50
  4. Step 4: Simplify right side
    134,629.80x = 13,785,581,786.13
  5. Step 5: Solve for x
    x = 13,785,581,786.13/134,629.80
  6. Step 6: Final answer
    x = 102,396.21

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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.