Home / 105,989.32-146,268.66-58,247.08

Finding the Fourth Proportional to 105,989.32, 146,268.66 and 58,247.08

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Solution

The fourth proportional to 105,989.32, 146,268.66 and 58,247.08 is: 80,382.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,989.32 : 146,268.66 = 58,247.08 : x
  2. Step 2: Convert to fraction form
    105,989.32/146,268.66 = 58,247.08/x
  3. Step 3: Cross multiply
    105,989.32x = 146,268.66 × 58,247.08
  4. Step 4: Simplify right side
    105,989.32x = 8,519,722,340.51
  5. Step 5: Solve for x
    x = 8,519,722,340.51/105,989.32
  6. Step 6: Final answer
    x = 80,382.84

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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.