Home / 76,190.82-105,141-42,197.95

Finding the Fourth Proportional to 76,190.82, 105,141 and 42,197.95

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Solution

The fourth proportional to 76,190.82, 105,141 and 42,197.95 is: 58,231.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,190.82 : 105,141 = 42,197.95 : x
  2. Step 2: Convert to fraction form
    76,190.82/105,141 = 42,197.95/x
  3. Step 3: Cross multiply
    76,190.82x = 105,141 × 42,197.95
  4. Step 4: Simplify right side
    76,190.82x = 4,436,734,660.95
  5. Step 5: Solve for x
    x = 4,436,734,660.95/76,190.82
  6. Step 6: Final answer
    x = 58,231.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.