Home / 105,919.66-146,104.94-62,870.78

Finding the Fourth Proportional to 105,919.66, 146,104.94 and 62,870.78

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Solution

The fourth proportional to 105,919.66, 146,104.94 and 62,870.78 is: 86,723.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,919.66 : 146,104.94 = 62,870.78 : x
  2. Step 2: Convert to fraction form
    105,919.66/146,104.94 = 62,870.78/x
  3. Step 3: Cross multiply
    105,919.66x = 146,104.94 × 62,870.78
  4. Step 4: Simplify right side
    105,919.66x = 9,185,731,539.65
  5. Step 5: Solve for x
    x = 9,185,731,539.65/105,919.66
  6. Step 6: Final answer
    x = 86,723.57

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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.