Home / 144,212.36-199,011.85-79,681.39

Finding the Fourth Proportional to 144,212.36, 199,011.85 and 79,681.39

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Solution

The fourth proportional to 144,212.36, 199,011.85 and 79,681.39 is: 109,959.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,212.36 : 199,011.85 = 79,681.39 : x
  2. Step 2: Convert to fraction form
    144,212.36/199,011.85 = 79,681.39/x
  3. Step 3: Cross multiply
    144,212.36x = 199,011.85 × 79,681.39
  4. Step 4: Simplify right side
    144,212.36x = 15,857,540,137.74
  5. Step 5: Solve for x
    x = 15,857,540,137.74/144,212.36
  6. Step 6: Final answer
    x = 109,959.65

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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.