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Finding the Fourth Proportional to 135,703.70, 203,555.55 and 102,023.90

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Solution

The fourth proportional to 135,703.70, 203,555.55 and 102,023.90 is: 153,035.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,703.70 : 203,555.55 = 102,023.90 : x
  2. Step 2: Convert to fraction form
    135,703.70/203,555.55 = 102,023.90/x
  3. Step 3: Cross multiply
    135,703.70x = 203,555.55 × 102,023.90
  4. Step 4: Simplify right side
    135,703.70x = 20,767,531,077.65
  5. Step 5: Solve for x
    x = 20,767,531,077.65/135,703.70
  6. Step 6: Final answer
    x = 153,035.85

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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.