Home / 188,419.20-260,015.55-103,534.44

Finding the Fourth Proportional to 188,419.20, 260,015.55 and 103,534.44

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Solution

The fourth proportional to 188,419.20, 260,015.55 and 103,534.44 is: 142,875.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,419.20 : 260,015.55 = 103,534.44 : x
  2. Step 2: Convert to fraction form
    188,419.20/260,015.55 = 103,534.44/x
  3. Step 3: Cross multiply
    188,419.20x = 260,015.55 × 103,534.44
  4. Step 4: Simplify right side
    188,419.20x = 26,920,564,360.54
  5. Step 5: Solve for x
    x = 26,920,564,360.54/188,419.20
  6. Step 6: Final answer
    x = 142,875.91

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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.