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Finding the Fourth Proportional to 185,367.60, 278,051.40 and 125,881.20

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Solution

The fourth proportional to 185,367.60, 278,051.40 and 125,881.20 is: 188,821.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,367.60 : 278,051.40 = 125,881.20 : x
  2. Step 2: Convert to fraction form
    185,367.60/278,051.40 = 125,881.20/x
  3. Step 3: Cross multiply
    185,367.60x = 278,051.40 × 125,881.20
  4. Step 4: Simplify right side
    185,367.60x = 35,001,443,893.68
  5. Step 5: Solve for x
    x = 35,001,443,893.68/185,367.60
  6. Step 6: Final answer
    x = 188,821.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.