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Finding the Fourth Proportional to 188,484.57, 260,101.80 and 103,600.89

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Solution

The fourth proportional to 188,484.57, 260,101.80 and 103,600.89 is: 142,965.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,484.57 : 260,101.80 = 103,600.89 : x
  2. Step 2: Convert to fraction form
    188,484.57/260,101.80 = 103,600.89/x
  3. Step 3: Cross multiply
    188,484.57x = 260,101.80 × 103,600.89
  4. Step 4: Simplify right side
    188,484.57x = 26,946,777,970.60
  5. Step 5: Solve for x
    x = 26,946,777,970.60/188,484.57
  6. Step 6: Final answer
    x = 142,965.43

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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.