Home / 139,851.15-192,996.68-76,188.93

Finding the Fourth Proportional to 139,851.15, 192,996.68 and 76,188.93

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Solution

The fourth proportional to 139,851.15, 192,996.68 and 76,188.93 is: 105,141.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,851.15 : 192,996.68 = 76,188.93 : x
  2. Step 2: Convert to fraction form
    139,851.15/192,996.68 = 76,188.93/x
  3. Step 3: Cross multiply
    139,851.15x = 192,996.68 × 76,188.93
  4. Step 4: Simplify right side
    139,851.15x = 14,704,210,542.75
  5. Step 5: Solve for x
    x = 14,704,210,542.75/139,851.15
  6. Step 6: Final answer
    x = 105,141.86

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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.