Home / 144,382.25-199,256.22-80,720.51

Finding the Fourth Proportional to 144,382.25, 199,256.22 and 80,720.51

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Solution

The fourth proportional to 144,382.25, 199,256.22 and 80,720.51 is: 111,399.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,382.25 : 199,256.22 = 80,720.51 : x
  2. Step 2: Convert to fraction form
    144,382.25/199,256.22 = 80,720.51/x
  3. Step 3: Cross multiply
    144,382.25x = 199,256.22 × 80,720.51
  4. Step 4: Simplify right side
    144,382.25x = 16,084,062,702.79
  5. Step 5: Solve for x
    x = 16,084,062,702.79/144,382.25
  6. Step 6: Final answer
    x = 111,399.17

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1.5x scale

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.