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Finding the Fourth Proportional to 144,493.99, 199,398.70 and 79,963.20

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Solution

The fourth proportional to 144,493.99, 199,398.70 and 79,963.20 is: 110,347.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,493.99 : 199,398.70 = 79,963.20 : x
  2. Step 2: Convert to fraction form
    144,493.99/199,398.70 = 79,963.20/x
  3. Step 3: Cross multiply
    144,493.99x = 199,398.70 × 79,963.20
  4. Step 4: Simplify right side
    144,493.99x = 15,944,558,127.84
  5. Step 5: Solve for x
    x = 15,944,558,127.84/144,493.99
  6. Step 6: Final answer
    x = 110,347.55

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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.