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Finding the Fourth Proportional to 188,073.48, 259,539.08 and 103,190.48

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Solution

The fourth proportional to 188,073.48, 259,539.08 and 103,190.48 is: 142,401.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,073.48 : 259,539.08 = 103,190.48 : x
  2. Step 2: Convert to fraction form
    188,073.48/259,539.08 = 103,190.48/x
  3. Step 3: Cross multiply
    188,073.48x = 259,539.08 × 103,190.48
  4. Step 4: Simplify right side
    188,073.48x = 26,781,960,430.31
  5. Step 5: Solve for x
    x = 26,781,960,430.31/188,073.48
  6. Step 6: Final answer
    x = 142,401.58

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1.5x scale

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.