Home / 133,021.48-183,593.06-79,309.80

Finding the Fourth Proportional to 133,021.48, 183,593.06 and 79,309.80

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Solution

The fourth proportional to 133,021.48, 183,593.06 and 79,309.80 is: 109,461.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,021.48 : 183,593.06 = 79,309.80 : x
  2. Step 2: Convert to fraction form
    133,021.48/183,593.06 = 79,309.80/x
  3. Step 3: Cross multiply
    133,021.48x = 183,593.06 × 79,309.80
  4. Step 4: Simplify right side
    133,021.48x = 14,560,728,869.99
  5. Step 5: Solve for x
    x = 14,560,728,869.99/133,021.48
  6. Step 6: Final answer
    x = 109,461.49

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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.