Home / 133,033.48-183,609.62-79,321.80

Finding the Fourth Proportional to 133,033.48, 183,609.62 and 79,321.80

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Solution

The fourth proportional to 133,033.48, 183,609.62 and 79,321.80 is: 109,478.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,033.48 : 183,609.62 = 79,321.80 : x
  2. Step 2: Convert to fraction form
    133,033.48/183,609.62 = 79,321.80/x
  3. Step 3: Cross multiply
    133,033.48x = 183,609.62 × 79,321.80
  4. Step 4: Simplify right side
    133,033.48x = 14,564,245,555.72
  5. Step 5: Solve for x
    x = 14,564,245,555.72/133,033.48
  6. Step 6: Final answer
    x = 109,478.05

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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.