Home / 139,125.52-191,993.55-75,463.32

Finding the Fourth Proportional to 139,125.52, 191,993.55 and 75,463.32

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Solution

The fourth proportional to 139,125.52, 191,993.55 and 75,463.32 is: 104,139.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,125.52 : 191,993.55 = 75,463.32 : x
  2. Step 2: Convert to fraction form
    139,125.52/191,993.55 = 75,463.32/x
  3. Step 3: Cross multiply
    139,125.52x = 191,993.55 × 75,463.32
  4. Step 4: Simplify right side
    139,125.52x = 14,488,469,741.62
  5. Step 5: Solve for x
    x = 14,488,469,741.62/139,125.52
  6. Step 6: Final answer
    x = 104,139.55

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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.