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Finding the Fourth Proportional to 137,739.80, 206,609.70 and 95,530.70

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Solution

The fourth proportional to 137,739.80, 206,609.70 and 95,530.70 is: 143,296.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,739.80 : 206,609.70 = 95,530.70 : x
  2. Step 2: Convert to fraction form
    137,739.80/206,609.70 = 95,530.70/x
  3. Step 3: Cross multiply
    137,739.80x = 206,609.70 × 95,530.70
  4. Step 4: Simplify right side
    137,739.80x = 19,737,569,267.79
  5. Step 5: Solve for x
    x = 19,737,569,267.79/137,739.80
  6. Step 6: Final answer
    x = 143,296.05

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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.