Home / 139,818.30-192,950.19-76,155.54

Finding the Fourth Proportional to 139,818.30, 192,950.19 and 76,155.54

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Solution

The fourth proportional to 139,818.30, 192,950.19 and 76,155.54 is: 105,095.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,818.30 : 192,950.19 = 76,155.54 : x
  2. Step 2: Convert to fraction form
    139,818.30/192,950.19 = 76,155.54/x
  3. Step 3: Cross multiply
    139,818.30x = 192,950.19 × 76,155.54
  4. Step 4: Simplify right side
    139,818.30x = 14,694,225,912.55
  5. Step 5: Solve for x
    x = 14,694,225,912.55/139,818.30
  6. Step 6: Final answer
    x = 105,095.16

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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.