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Finding the Fourth Proportional to 188,543.48, 260,183.35 and 103,659.89

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Solution

The fourth proportional to 188,543.48, 260,183.35 and 103,659.89 is: 143,046.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,543.48 : 260,183.35 = 103,659.89 : x
  2. Step 2: Convert to fraction form
    188,543.48/260,183.35 = 103,659.89/x
  3. Step 3: Cross multiply
    188,543.48x = 260,183.35 × 103,659.89
  4. Step 4: Simplify right side
    188,543.48x = 26,970,577,440.83
  5. Step 5: Solve for x
    x = 26,970,577,440.83/188,543.48
  6. Step 6: Final answer
    x = 143,046.99

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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.