Home / 161,423.97-222,768.07-89,810.66

Finding the Fourth Proportional to 161,423.97, 222,768.07 and 89,810.66

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Solution

The fourth proportional to 161,423.97, 222,768.07 and 89,810.66 is: 123,940.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,423.97 : 222,768.07 = 89,810.66 : x
  2. Step 2: Convert to fraction form
    161,423.97/222,768.07 = 89,810.66/x
  3. Step 3: Cross multiply
    161,423.97x = 222,768.07 × 89,810.66
  4. Step 4: Simplify right side
    161,423.97x = 20,006,946,279.79
  5. Step 5: Solve for x
    x = 20,006,946,279.79/161,423.97
  6. Step 6: Final answer
    x = 123,940.37

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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.