Home / 136,883.16-188,852.94-80,255.16

Finding the Fourth Proportional to 136,883.16, 188,852.94 and 80,255.16

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Solution

The fourth proportional to 136,883.16, 188,852.94 and 80,255.16 is: 110,725.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,883.16 : 188,852.94 = 80,255.16 : x
  2. Step 2: Convert to fraction form
    136,883.16/188,852.94 = 80,255.16/x
  3. Step 3: Cross multiply
    136,883.16x = 188,852.94 × 80,255.16
  4. Step 4: Simplify right side
    136,883.16x = 15,156,422,916.17
  5. Step 5: Solve for x
    x = 15,156,422,916.17/136,883.16
  6. Step 6: Final answer
    x = 110,725.26

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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.