Home / 144,768.25-199,788.39-81,126.55

Finding the Fourth Proportional to 144,768.25, 199,788.39 and 81,126.55

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Solution

The fourth proportional to 144,768.25, 199,788.39 and 81,126.55 is: 111,959.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,768.25 : 199,788.39 = 81,126.55 : x
  2. Step 2: Convert to fraction form
    144,768.25/199,788.39 = 81,126.55/x
  3. Step 3: Cross multiply
    144,768.25x = 199,788.39 × 81,126.55
  4. Step 4: Simplify right side
    144,768.25x = 16,208,142,810.75
  5. Step 5: Solve for x
    x = 16,208,142,810.75/144,768.25
  6. Step 6: Final answer
    x = 111,959.24

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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.