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Finding the Fourth Proportional to 188,746.70, 260,459.61 and 103,863.76

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Solution

The fourth proportional to 188,746.70, 260,459.61 and 103,863.76 is: 143,326.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,746.70 : 260,459.61 = 103,863.76 : x
  2. Step 2: Convert to fraction form
    188,746.70/260,459.61 = 103,863.76/x
  3. Step 3: Cross multiply
    188,746.70x = 260,459.61 × 103,863.76
  4. Step 4: Simplify right side
    188,746.70x = 27,052,313,120.44
  5. Step 5: Solve for x
    x = 27,052,313,120.44/188,746.70
  6. Step 6: Final answer
    x = 143,326.02

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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.