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Finding the Fourth Proportional to 188,737, 260,458.91 and 103,855.89

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Solution

The fourth proportional to 188,737, 260,458.91 and 103,855.89 is: 143,322.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,737 : 260,458.91 = 103,855.89 : x
  2. Step 2: Convert to fraction form
    188,737/260,458.91 = 103,855.89/x
  3. Step 3: Cross multiply
    188,737x = 260,458.91 × 103,855.89
  4. Step 4: Simplify right side
    188,737x = 27,050,191,906.48
  5. Step 5: Solve for x
    x = 27,050,191,906.48/188,737
  6. Step 6: Final answer
    x = 143,322.15

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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.