Home / 136,215.92-187,961.64-75,771.30

Finding the Fourth Proportional to 136,215.92, 187,961.64 and 75,771.30

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Solution

The fourth proportional to 136,215.92, 187,961.64 and 75,771.30 is: 104,555.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,215.92 : 187,961.64 = 75,771.30 : x
  2. Step 2: Convert to fraction form
    136,215.92/187,961.64 = 75,771.30/x
  3. Step 3: Cross multiply
    136,215.92x = 187,961.64 × 75,771.30
  4. Step 4: Simplify right side
    136,215.92x = 14,242,097,812.93
  5. Step 5: Solve for x
    x = 14,242,097,812.93/136,215.92
  6. Step 6: Final answer
    x = 104,555.31

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1.5x scale

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.