Home / 188,734.56-260,443.68-103,835.28

Finding the Fourth Proportional to 188,734.56, 260,443.68 and 103,835.28

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Solution

The fourth proportional to 188,734.56, 260,443.68 and 103,835.28 is: 143,287.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,734.56 : 260,443.68 = 103,835.28 : x
  2. Step 2: Convert to fraction form
    188,734.56/260,443.68 = 103,835.28/x
  3. Step 3: Cross multiply
    188,734.56x = 260,443.68 × 103,835.28
  4. Step 4: Simplify right side
    188,734.56x = 27,043,242,437.03
  5. Step 5: Solve for x
    x = 27,043,242,437.03/188,734.56
  6. Step 6: Final answer
    x = 143,287.18

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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.