Home / 144,669.66-199,661.18-80,995.15

Finding the Fourth Proportional to 144,669.66, 199,661.18 and 80,995.15

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Solution

The fourth proportional to 144,669.66, 199,661.18 and 80,995.15 is: 111,782.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,669.66 : 199,661.18 = 80,995.15 : x
  2. Step 2: Convert to fraction form
    144,669.66/199,661.18 = 80,995.15/x
  3. Step 3: Cross multiply
    144,669.66x = 199,661.18 × 80,995.15
  4. Step 4: Simplify right side
    144,669.66x = 16,171,587,223.28
  5. Step 5: Solve for x
    x = 16,171,587,223.28/144,669.66
  6. Step 6: Final answer
    x = 111,782.85

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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.