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Finding the Fourth Proportional to 136,375.70, 204,563.55 and 77,326.70

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Solution

The fourth proportional to 136,375.70, 204,563.55 and 77,326.70 is: 115,990.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,375.70 : 204,563.55 = 77,326.70 : x
  2. Step 2: Convert to fraction form
    136,375.70/204,563.55 = 77,326.70/x
  3. Step 3: Cross multiply
    136,375.70x = 204,563.55 × 77,326.70
  4. Step 4: Simplify right side
    136,375.70x = 15,818,224,261.79
  5. Step 5: Solve for x
    x = 15,818,224,261.79/136,375.70
  6. Step 6: Final answer
    x = 115,990.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.