Home / 125,747.76-188,621.70-30,979.79

Finding the Fourth Proportional to 125,747.76, 188,621.70 and 30,979.79

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Solution

The fourth proportional to 125,747.76, 188,621.70 and 30,979.79 is: 46,469.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,747.76 : 188,621.70 = 30,979.79 : x
  2. Step 2: Convert to fraction form
    125,747.76/188,621.70 = 30,979.79/x
  3. Step 3: Cross multiply
    125,747.76x = 188,621.70 × 30,979.79
  4. Step 4: Simplify right side
    125,747.76x = 5,843,461,049.55
  5. Step 5: Solve for x
    x = 5,843,461,049.55/125,747.76
  6. Step 6: Final answer
    x = 46,469.70

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1.5x scale

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.