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Finding the Fourth Proportional to 125,179.69, 186,858.95 and 115,928.68

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Solution

The fourth proportional to 125,179.69, 186,858.95 and 115,928.68 is: 173,049.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,179.69 : 186,858.95 = 115,928.68 : x
  2. Step 2: Convert to fraction form
    125,179.69/186,858.95 = 115,928.68/x
  3. Step 3: Cross multiply
    125,179.69x = 186,858.95 × 115,928.68
  4. Step 4: Simplify right side
    125,179.69x = 21,662,311,419.69
  5. Step 5: Solve for x
    x = 21,662,311,419.69/125,179.69
  6. Step 6: Final answer
    x = 173,049.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.