Home / 136,614.62-188,529.27-76,189.16

Finding the Fourth Proportional to 136,614.62, 188,529.27 and 76,189.16

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Solution

The fourth proportional to 136,614.62, 188,529.27 and 76,189.16 is: 105,141.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,614.62 : 188,529.27 = 76,189.16 : x
  2. Step 2: Convert to fraction form
    136,614.62/188,529.27 = 76,189.16/x
  3. Step 3: Cross multiply
    136,614.62x = 188,529.27 × 76,189.16
  4. Step 4: Simplify right side
    136,614.62x = 14,363,886,716.71
  5. Step 5: Solve for x
    x = 14,363,886,716.71/136,614.62
  6. Step 6: Final answer
    x = 105,141.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.