Home / 192,519.17-288,709.63-74,131.01

Finding the Fourth Proportional to 192,519.17, 288,709.63 and 74,131.01

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Solution

The fourth proportional to 192,519.17, 288,709.63 and 74,131.01 is: 111,169.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,519.17 : 288,709.63 = 74,131.01 : x
  2. Step 2: Convert to fraction form
    192,519.17/288,709.63 = 74,131.01/x
  3. Step 3: Cross multiply
    192,519.17x = 288,709.63 × 74,131.01
  4. Step 4: Simplify right side
    192,519.17x = 21,402,334,839.75
  5. Step 5: Solve for x
    x = 21,402,334,839.75/192,519.17
  6. Step 6: Final answer
    x = 111,169.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.