Home / 125,826.11-188,867.19-54,780.50

Finding the Fourth Proportional to 125,826.11, 188,867.19 and 54,780.50

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Solution

The fourth proportional to 125,826.11, 188,867.19 and 54,780.50 is: 82,226.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,826.11 : 188,867.19 = 54,780.50 : x
  2. Step 2: Convert to fraction form
    125,826.11/188,867.19 = 54,780.50/x
  3. Step 3: Cross multiply
    125,826.11x = 188,867.19 × 54,780.50
  4. Step 4: Simplify right side
    125,826.11x = 10,346,238,157.46
  5. Step 5: Solve for x
    x = 10,346,238,157.46/125,826.11
  6. Step 6: Final answer
    x = 82,226.48

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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.