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Finding the Fourth Proportional to 144,347.88, 199,191.39 and 79,813.23

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Solution

The fourth proportional to 144,347.88, 199,191.39 and 79,813.23 is: 110,137.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,347.88 : 199,191.39 = 79,813.23 : x
  2. Step 2: Convert to fraction form
    144,347.88/199,191.39 = 79,813.23/x
  3. Step 3: Cross multiply
    144,347.88x = 199,191.39 × 79,813.23
  4. Step 4: Simplify right side
    144,347.88x = 15,898,108,224.09
  5. Step 5: Solve for x
    x = 15,898,108,224.09/144,347.88
  6. Step 6: Final answer
    x = 110,137.46

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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.