Home / 133,020.48-183,591.68-79,308.80

Finding the Fourth Proportional to 133,020.48, 183,591.68 and 79,308.80

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Solution

The fourth proportional to 133,020.48, 183,591.68 and 79,308.80 is: 109,460.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,020.48 : 183,591.68 = 79,308.80 : x
  2. Step 2: Convert to fraction form
    133,020.48/183,591.68 = 79,308.80/x
  3. Step 3: Cross multiply
    133,020.48x = 183,591.68 × 79,308.80
  4. Step 4: Simplify right side
    133,020.48x = 14,560,435,830.78
  5. Step 5: Solve for x
    x = 14,560,435,830.78/133,020.48
  6. Step 6: Final answer
    x = 109,460.11

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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.