Home / 188,072.10-259,539.81-103,189.77

Finding the Fourth Proportional to 188,072.10, 259,539.81 and 103,189.77

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Solution

The fourth proportional to 188,072.10, 259,539.81 and 103,189.77 is: 142,402.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,072.10 : 259,539.81 = 103,189.77 : x
  2. Step 2: Convert to fraction form
    188,072.10/259,539.81 = 103,189.77/x
  3. Step 3: Cross multiply
    188,072.10x = 259,539.81 × 103,189.77
  4. Step 4: Simplify right side
    188,072.10x = 26,781,853,299.74
  5. Step 5: Solve for x
    x = 26,781,853,299.74/188,072.10
  6. Step 6: Final answer
    x = 142,402.05

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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.