Home / 129,128.12-193,692.18-35,633.88

Finding the Fourth Proportional to 129,128.12, 193,692.18 and 35,633.88

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Solution

The fourth proportional to 129,128.12, 193,692.18 and 35,633.88 is: 53,450.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,128.12 : 193,692.18 = 35,633.88 : x
  2. Step 2: Convert to fraction form
    129,128.12/193,692.18 = 35,633.88/x
  3. Step 3: Cross multiply
    129,128.12x = 193,692.18 × 35,633.88
  4. Step 4: Simplify right side
    129,128.12x = 6,902,003,899.06
  5. Step 5: Solve for x
    x = 6,902,003,899.06/129,128.12
  6. Step 6: Final answer
    x = 53,450.82

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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.