Home / 144,222.05-199,016.19-79,690.57

Finding the Fourth Proportional to 144,222.05, 199,016.19 and 79,690.57

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Solution

The fourth proportional to 144,222.05, 199,016.19 and 79,690.57 is: 109,967.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,222.05 : 199,016.19 = 79,690.57 : x
  2. Step 2: Convert to fraction form
    144,222.05/199,016.19 = 79,690.57/x
  3. Step 3: Cross multiply
    144,222.05x = 199,016.19 × 79,690.57
  4. Step 4: Simplify right side
    144,222.05x = 15,859,713,122.79
  5. Step 5: Solve for x
    x = 15,859,713,122.79/144,222.05
  6. Step 6: Final answer
    x = 109,967.32

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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.