Home / 140,495.20-193,884.90-76,831.63

Finding the Fourth Proportional to 140,495.20, 193,884.90 and 76,831.63

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Solution

The fourth proportional to 140,495.20, 193,884.90 and 76,831.63 is: 106,028.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,495.20 : 193,884.90 = 76,831.63 : x
  2. Step 2: Convert to fraction form
    140,495.20/193,884.90 = 76,831.63/x
  3. Step 3: Cross multiply
    140,495.20x = 193,884.90 × 76,831.63
  4. Step 4: Simplify right side
    140,495.20x = 14,896,491,929.96
  5. Step 5: Solve for x
    x = 14,896,491,929.96/140,495.20
  6. Step 6: Final answer
    x = 106,028.48

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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.