Home / 188,511.31-260,139-103,627.77

Finding the Fourth Proportional to 188,511.31, 260,139 and 103,627.77

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Solution

The fourth proportional to 188,511.31, 260,139 and 103,627.77 is: 143,002.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,511.31 : 260,139 = 103,627.77 : x
  2. Step 2: Convert to fraction form
    188,511.31/260,139 = 103,627.77/x
  3. Step 3: Cross multiply
    188,511.31x = 260,139 × 103,627.77
  4. Step 4: Simplify right side
    188,511.31x = 26,957,624,460.03
  5. Step 5: Solve for x
    x = 26,957,624,460.03/188,511.31
  6. Step 6: Final answer
    x = 143,002.69

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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.