Home / 137,149.40-205,724.10-43,664.60

Finding the Fourth Proportional to 137,149.40, 205,724.10 and 43,664.60

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Solution

The fourth proportional to 137,149.40, 205,724.10 and 43,664.60 is: 65,496.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,149.40 : 205,724.10 = 43,664.60 : x
  2. Step 2: Convert to fraction form
    137,149.40/205,724.10 = 43,664.60/x
  3. Step 3: Cross multiply
    137,149.40x = 205,724.10 × 43,664.60
  4. Step 4: Simplify right side
    137,149.40x = 8,982,860,536.86
  5. Step 5: Solve for x
    x = 8,982,860,536.86/137,149.40
  6. Step 6: Final answer
    x = 65,496.90

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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.