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Finding the Fourth Proportional to 137,210.60, 205,796.70 and 43,725.80

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Solution

The fourth proportional to 137,210.60, 205,796.70 and 43,725.80 is: 65,582.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,210.60 : 205,796.70 = 43,725.80 : x
  2. Step 2: Convert to fraction form
    137,210.60/205,796.70 = 43,725.80/x
  3. Step 3: Cross multiply
    137,210.60x = 205,796.70 × 43,725.80
  4. Step 4: Simplify right side
    137,210.60x = 8,998,625,344.86
  5. Step 5: Solve for x
    x = 8,998,625,344.86/137,210.60
  6. Step 6: Final answer
    x = 65,582.58

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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.