Home / 139,240.30-192,155.09-75,577.96

Finding the Fourth Proportional to 139,240.30, 192,155.09 and 75,577.96

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Solution

The fourth proportional to 139,240.30, 192,155.09 and 75,577.96 is: 104,299.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,240.30 : 192,155.09 = 75,577.96 : x
  2. Step 2: Convert to fraction form
    139,240.30/192,155.09 = 75,577.96/x
  3. Step 3: Cross multiply
    139,240.30x = 192,155.09 × 75,577.96
  4. Step 4: Simplify right side
    139,240.30x = 14,522,689,705.82
  5. Step 5: Solve for x
    x = 14,522,689,705.82/139,240.30
  6. Step 6: Final answer
    x = 104,299.47

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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.