Home / 143,436.64-197,939.75-79,773.07

Finding the Fourth Proportional to 143,436.64, 197,939.75 and 79,773.07

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Solution

The fourth proportional to 143,436.64, 197,939.75 and 79,773.07 is: 110,085.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,436.64 : 197,939.75 = 79,773.07 : x
  2. Step 2: Convert to fraction form
    143,436.64/197,939.75 = 79,773.07/x
  3. Step 3: Cross multiply
    143,436.64x = 197,939.75 × 79,773.07
  4. Step 4: Simplify right side
    143,436.64x = 15,790,261,532.53
  5. Step 5: Solve for x
    x = 15,790,261,532.53/143,436.64
  6. Step 6: Final answer
    x = 110,085.27

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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.