Home / 143,995.45-198,712.00-79,465.18

Finding the Fourth Proportional to 143,995.45, 198,712.00 and 79,465.18

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Solution

The fourth proportional to 143,995.45, 198,712.00 and 79,465.18 is: 109,661.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,995.45 : 198,712.00 = 79,465.18 : x
  2. Step 2: Convert to fraction form
    143,995.45/198,712.00 = 79,465.18/x
  3. Step 3: Cross multiply
    143,995.45x = 198,712.00 × 79,465.18
  4. Step 4: Simplify right side
    143,995.45x = 15,790,684,649.50
  5. Step 5: Solve for x
    x = 15,790,684,649.50/143,995.45
  6. Step 6: Final answer
    x = 109,661.00

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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.