Home / 105,961.94-158,907.81-42,765.74

Finding the Fourth Proportional to 105,961.94, 158,907.81 and 42,765.74

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Solution

The fourth proportional to 105,961.94, 158,907.81 and 42,765.74 is: 64,134.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,961.94 : 158,907.81 = 42,765.74 : x
  2. Step 2: Convert to fraction form
    105,961.94/158,907.81 = 42,765.74/x
  3. Step 3: Cross multiply
    105,961.94x = 158,907.81 × 42,765.74
  4. Step 4: Simplify right side
    105,961.94x = 6,795,810,086.43
  5. Step 5: Solve for x
    x = 6,795,810,086.43/105,961.94
  6. Step 6: Final answer
    x = 64,134.44

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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.