Home / 136,733.20-205,099.80-109,085.20

Finding the Fourth Proportional to 136,733.20, 205,099.80 and 109,085.20

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Solution

The fourth proportional to 136,733.20, 205,099.80 and 109,085.20 is: 163,627.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,733.20 : 205,099.80 = 109,085.20 : x
  2. Step 2: Convert to fraction form
    136,733.20/205,099.80 = 109,085.20/x
  3. Step 3: Cross multiply
    136,733.20x = 205,099.80 × 109,085.20
  4. Step 4: Simplify right side
    136,733.20x = 22,373,352,702.96
  5. Step 5: Solve for x
    x = 22,373,352,702.96/136,733.20
  6. Step 6: Final answer
    x = 163,627.80

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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.