Home / 136,824.80-205,235.78-43,330.55

Finding the Fourth Proportional to 136,824.80, 205,235.78 and 43,330.55

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Solution

The fourth proportional to 136,824.80, 205,235.78 and 43,330.55 is: 64,995.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,824.80 : 205,235.78 = 43,330.55 : x
  2. Step 2: Convert to fraction form
    136,824.80/205,235.78 = 43,330.55/x
  3. Step 3: Cross multiply
    136,824.80x = 205,235.78 × 43,330.55
  4. Step 4: Simplify right side
    136,824.80x = 8,892,977,984.25
  5. Step 5: Solve for x
    x = 8,892,977,984.25/136,824.80
  6. Step 6: Final answer
    x = 64,995.37

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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.