Home / 125,431.84-188,081.52-55,277.92

Finding the Fourth Proportional to 125,431.84, 188,081.52 and 55,277.92

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Solution

The fourth proportional to 125,431.84, 188,081.52 and 55,277.92 is: 82,887.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,431.84 : 188,081.52 = 55,277.92 : x
  2. Step 2: Convert to fraction form
    125,431.84/188,081.52 = 55,277.92/x
  3. Step 3: Cross multiply
    125,431.84x = 188,081.52 × 55,277.92
  4. Step 4: Simplify right side
    125,431.84x = 10,396,755,216.04
  5. Step 5: Solve for x
    x = 10,396,755,216.04/125,431.84
  6. Step 6: Final answer
    x = 82,887.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.