Home / 136,255.08-188,015.22-75,809.64

Finding the Fourth Proportional to 136,255.08, 188,015.22 and 75,809.64

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Solution

The fourth proportional to 136,255.08, 188,015.22 and 75,809.64 is: 104,607.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,255.08 : 188,015.22 = 75,809.64 : x
  2. Step 2: Convert to fraction form
    136,255.08/188,015.22 = 75,809.64/x
  3. Step 3: Cross multiply
    136,255.08x = 188,015.22 × 75,809.64
  4. Step 4: Simplify right side
    136,255.08x = 14,253,366,142.72
  5. Step 5: Solve for x
    x = 14,253,366,142.72/136,255.08
  6. Step 6: Final answer
    x = 104,607.96

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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.