Home / 143,173.43-197,573.92-79,515.33

Finding the Fourth Proportional to 143,173.43, 197,573.92 and 79,515.33

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Solution

The fourth proportional to 143,173.43, 197,573.92 and 79,515.33 is: 109,728.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,173.43 : 197,573.92 = 79,515.33 : x
  2. Step 2: Convert to fraction form
    143,173.43/197,573.92 = 79,515.33/x
  3. Step 3: Cross multiply
    143,173.43x = 197,573.92 × 79,515.33
  4. Step 4: Simplify right side
    143,173.43x = 15,710,154,062.75
  5. Step 5: Solve for x
    x = 15,710,154,062.75/143,173.43
  6. Step 6: Final answer
    x = 109,728.14

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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.