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Finding the Fourth Proportional to 188,045.39, 259,487.08 and 103,162.46

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Solution

The fourth proportional to 188,045.39, 259,487.08 and 103,162.46 is: 142,355.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,045.39 : 259,487.08 = 103,162.46 : x
  2. Step 2: Convert to fraction form
    188,045.39/259,487.08 = 103,162.46/x
  3. Step 3: Cross multiply
    188,045.39x = 259,487.08 × 103,162.46
  4. Step 4: Simplify right side
    188,045.39x = 26,769,323,955.68
  5. Step 5: Solve for x
    x = 26,769,323,955.68/188,045.39
  6. Step 6: Final answer
    x = 142,355.65

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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.