Home / 123,194.13-169,946.76-79,571.67

Finding the Fourth Proportional to 123,194.13, 169,946.76 and 79,571.67

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Solution

The fourth proportional to 123,194.13, 169,946.76 and 79,571.67 is: 109,769.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,194.13 : 169,946.76 = 79,571.67 : x
  2. Step 2: Convert to fraction form
    123,194.13/169,946.76 = 79,571.67/x
  3. Step 3: Cross multiply
    123,194.13x = 169,946.76 × 79,571.67
  4. Step 4: Simplify right side
    123,194.13x = 13,522,947,504.29
  5. Step 5: Solve for x
    x = 13,522,947,504.29/123,194.13
  6. Step 6: Final answer
    x = 109,769.41

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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.