Home / 139,761.03-192,873.69-76,102.32

Finding the Fourth Proportional to 139,761.03, 192,873.69 and 76,102.32

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Solution

The fourth proportional to 139,761.03, 192,873.69 and 76,102.32 is: 105,023.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,761.03 : 192,873.69 = 76,102.32 : x
  2. Step 2: Convert to fraction form
    139,761.03/192,873.69 = 76,102.32/x
  3. Step 3: Cross multiply
    139,761.03x = 192,873.69 × 76,102.32
  4. Step 4: Simplify right side
    139,761.03x = 14,678,135,275.96
  5. Step 5: Solve for x
    x = 14,678,135,275.96/139,761.03
  6. Step 6: Final answer
    x = 105,023.09

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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.