Home / 136,439.43-188,300.26-76,019.91

Finding the Fourth Proportional to 136,439.43, 188,300.26 and 76,019.91

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Solution

The fourth proportional to 136,439.43, 188,300.26 and 76,019.91 is: 104,915.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,439.43 : 188,300.26 = 76,019.91 : x
  2. Step 2: Convert to fraction form
    136,439.43/188,300.26 = 76,019.91/x
  3. Step 3: Cross multiply
    136,439.43x = 188,300.26 × 76,019.91
  4. Step 4: Simplify right side
    136,439.43x = 14,314,568,818.18
  5. Step 5: Solve for x
    x = 14,314,568,818.18/136,439.43
  6. Step 6: Final answer
    x = 104,915.19

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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.