Home / 136,863.26-205,300.65-66,801.50

Finding the Fourth Proportional to 136,863.26, 205,300.65 and 66,801.50

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Solution

The fourth proportional to 136,863.26, 205,300.65 and 66,801.50 is: 100,205.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,863.26 : 205,300.65 = 66,801.50 : x
  2. Step 2: Convert to fraction form
    136,863.26/205,300.65 = 66,801.50/x
  3. Step 3: Cross multiply
    136,863.26x = 205,300.65 × 66,801.50
  4. Step 4: Simplify right side
    136,863.26x = 13,714,391,370.98
  5. Step 5: Solve for x
    x = 13,714,391,370.98/136,863.26
  6. Step 6: Final answer
    x = 100,205.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.