Home / 136,169.46-187,911.16-75,738.81

Finding the Fourth Proportional to 136,169.46, 187,911.16 and 75,738.81

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Solution

The fourth proportional to 136,169.46, 187,911.16 and 75,738.81 is: 104,518.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,169.46 : 187,911.16 = 75,738.81 : x
  2. Step 2: Convert to fraction form
    136,169.46/187,911.16 = 75,738.81/x
  3. Step 3: Cross multiply
    136,169.46x = 187,911.16 × 75,738.81
  4. Step 4: Simplify right side
    136,169.46x = 14,232,167,644.12
  5. Step 5: Solve for x
    x = 14,232,167,644.12/136,169.46
  6. Step 6: Final answer
    x = 104,518.06

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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.