Home / 136,426.75-188,274.59-75,997.38

Finding the Fourth Proportional to 136,426.75, 188,274.59 and 75,997.38

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Solution

The fourth proportional to 136,426.75, 188,274.59 and 75,997.38 is: 104,879.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,426.75 : 188,274.59 = 75,997.38 : x
  2. Step 2: Convert to fraction form
    136,426.75/188,274.59 = 75,997.38/x
  3. Step 3: Cross multiply
    136,426.75x = 188,274.59 × 75,997.38
  4. Step 4: Simplify right side
    136,426.75x = 14,308,375,985.91
  5. Step 5: Solve for x
    x = 14,308,375,985.91/136,426.75
  6. Step 6: Final answer
    x = 104,879.55

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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.