Home / 139,718.24-192,815.52-76,060.32

Finding the Fourth Proportional to 139,718.24, 192,815.52 and 76,060.32

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Solution

The fourth proportional to 139,718.24, 192,815.52 and 76,060.32 is: 104,965.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,718.24 : 192,815.52 = 76,060.32 : x
  2. Step 2: Convert to fraction form
    139,718.24/192,815.52 = 76,060.32/x
  3. Step 3: Cross multiply
    139,718.24x = 192,815.52 × 76,060.32
  4. Step 4: Simplify right side
    139,718.24x = 14,665,610,152.17
  5. Step 5: Solve for x
    x = 14,665,610,152.17/139,718.24
  6. Step 6: Final answer
    x = 104,965.61

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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.