Home / 139,827.54-192,963.69-76,165.86

Finding the Fourth Proportional to 139,827.54, 192,963.69 and 76,165.86

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Solution

The fourth proportional to 139,827.54, 192,963.69 and 76,165.86 is: 105,109.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,827.54 : 192,963.69 = 76,165.86 : x
  2. Step 2: Convert to fraction form
    139,827.54/192,963.69 = 76,165.86/x
  3. Step 3: Cross multiply
    139,827.54x = 192,963.69 × 76,165.86
  4. Step 4: Simplify right side
    139,827.54x = 14,697,245,397.62
  5. Step 5: Solve for x
    x = 14,697,245,397.62/139,827.54
  6. Step 6: Final answer
    x = 105,109.80

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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.