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Finding the Fourth Proportional to 188,379.32, 259,813.10 and 123,914.76

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Solution

The fourth proportional to 188,379.32, 259,813.10 and 123,914.76 is: 170,903.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,379.32 : 259,813.10 = 123,914.76 : x
  2. Step 2: Convert to fraction form
    188,379.32/259,813.10 = 123,914.76/x
  3. Step 3: Cross multiply
    188,379.32x = 259,813.10 × 123,914.76
  4. Step 4: Simplify right side
    188,379.32x = 32,194,677,931.36
  5. Step 5: Solve for x
    x = 32,194,677,931.36/188,379.32
  6. Step 6: Final answer
    x = 170,903.46

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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.