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Finding the Fourth Proportional to 125,754.91, 188,682.78 and 45,798.45

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Solution

The fourth proportional to 125,754.91, 188,682.78 and 45,798.45 is: 68,716.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,754.91 : 188,682.78 = 45,798.45 : x
  2. Step 2: Convert to fraction form
    125,754.91/188,682.78 = 45,798.45/x
  3. Step 3: Cross multiply
    125,754.91x = 188,682.78 × 45,798.45
  4. Step 4: Simplify right side
    125,754.91x = 8,641,378,825.33
  5. Step 5: Solve for x
    x = 8,641,378,825.33/125,754.91
  6. Step 6: Final answer
    x = 68,716.03

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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.