Home / 143,968.16-198,588.96-92,900.96

Finding the Fourth Proportional to 143,968.16, 198,588.96 and 92,900.96

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Solution

The fourth proportional to 143,968.16, 198,588.96 and 92,900.96 is: 128,147.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,968.16 : 198,588.96 = 92,900.96 : x
  2. Step 2: Convert to fraction form
    143,968.16/198,588.96 = 92,900.96/x
  3. Step 3: Cross multiply
    143,968.16x = 198,588.96 × 92,900.96
  4. Step 4: Simplify right side
    143,968.16x = 18,449,105,029.40
  5. Step 5: Solve for x
    x = 18,449,105,029.40/143,968.16
  6. Step 6: Final answer
    x = 128,147.12

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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.