Home / 136,369.92-188,190.45-79,792.26

Finding the Fourth Proportional to 136,369.92, 188,190.45 and 79,792.26

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Solution

The fourth proportional to 136,369.92, 188,190.45 and 79,792.26 is: 110,113.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,369.92 : 188,190.45 = 79,792.26 : x
  2. Step 2: Convert to fraction form
    136,369.92/188,190.45 = 79,792.26/x
  3. Step 3: Cross multiply
    136,369.92x = 188,190.45 × 79,792.26
  4. Step 4: Simplify right side
    136,369.92x = 15,016,141,315.92
  5. Step 5: Solve for x
    x = 15,016,141,315.92/136,369.92
  6. Step 6: Final answer
    x = 110,113.30

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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.