Home / 129,128.50-193,703.90-35,634.24

Finding the Fourth Proportional to 129,128.50, 193,703.90 and 35,634.24

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Solution

The fourth proportional to 129,128.50, 193,703.90 and 35,634.24 is: 53,454.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,128.50 : 193,703.90 = 35,634.24 : x
  2. Step 2: Convert to fraction form
    129,128.50/193,703.90 = 35,634.24/x
  3. Step 3: Cross multiply
    129,128.50x = 193,703.90 × 35,634.24
  4. Step 4: Simplify right side
    129,128.50x = 6,902,491,261.54
  5. Step 5: Solve for x
    x = 6,902,491,261.54/129,128.50
  6. Step 6: Final answer
    x = 53,454.44

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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.