Home / 76,198.75-105,154.59-42,206.50

Finding the Fourth Proportional to 76,198.75, 105,154.59 and 42,206.50

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Solution

The fourth proportional to 76,198.75, 105,154.59 and 42,206.50 is: 58,245.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,198.75 : 105,154.59 = 42,206.50 : x
  2. Step 2: Convert to fraction form
    76,198.75/105,154.59 = 42,206.50/x
  3. Step 3: Cross multiply
    76,198.75x = 105,154.59 × 42,206.50
  4. Step 4: Simplify right side
    76,198.75x = 4,438,207,202.84
  5. Step 5: Solve for x
    x = 4,438,207,202.84/76,198.75
  6. Step 6: Final answer
    x = 58,245.14

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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.