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Finding the Fourth Proportional to 125,405.06, 188,103.95 and 36,660.65

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Solution

The fourth proportional to 125,405.06, 188,103.95 and 36,660.65 is: 54,989.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,405.06 : 188,103.95 = 36,660.65 : x
  2. Step 2: Convert to fraction form
    125,405.06/188,103.95 = 36,660.65/x
  3. Step 3: Cross multiply
    125,405.06x = 188,103.95 × 36,660.65
  4. Step 4: Simplify right side
    125,405.06x = 6,896,012,891.26
  5. Step 5: Solve for x
    x = 6,896,012,891.26/125,405.06
  6. Step 6: Final answer
    x = 54,989.91

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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.