Home / 139,017.08-191,844.78-75,355.94

Finding the Fourth Proportional to 139,017.08, 191,844.78 and 75,355.94

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Solution

The fourth proportional to 139,017.08, 191,844.78 and 75,355.94 is: 103,991.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,017.08 : 191,844.78 = 75,355.94 : x
  2. Step 2: Convert to fraction form
    139,017.08/191,844.78 = 75,355.94/x
  3. Step 3: Cross multiply
    139,017.08x = 191,844.78 × 75,355.94
  4. Step 4: Simplify right side
    139,017.08x = 14,456,643,730.99
  5. Step 5: Solve for x
    x = 14,456,643,730.99/139,017.08
  6. Step 6: Final answer
    x = 103,991.85

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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.