Home / 143,494.29-197,190.89-136,908.65

Finding the Fourth Proportional to 143,494.29, 197,190.89 and 136,908.65

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Solution

The fourth proportional to 143,494.29, 197,190.89 and 136,908.65 is: 188,140.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,494.29 : 197,190.89 = 136,908.65 : x
  2. Step 2: Convert to fraction form
    143,494.29/197,190.89 = 136,908.65/x
  3. Step 3: Cross multiply
    143,494.29x = 197,190.89 × 136,908.65
  4. Step 4: Simplify right side
    143,494.29x = 26,997,136,871.70
  5. Step 5: Solve for x
    x = 26,997,136,871.70/143,494.29
  6. Step 6: Final answer
    x = 188,140.84

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.