Home / 104,629.60-156,944.40-91,507.60

Finding the Fourth Proportional to 104,629.60, 156,944.40 and 91,507.60

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Solution

The fourth proportional to 104,629.60, 156,944.40 and 91,507.60 is: 137,261.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,629.60 : 156,944.40 = 91,507.60 : x
  2. Step 2: Convert to fraction form
    104,629.60/156,944.40 = 91,507.60/x
  3. Step 3: Cross multiply
    104,629.60x = 156,944.40 × 91,507.60
  4. Step 4: Simplify right side
    104,629.60x = 14,361,605,377.44
  5. Step 5: Solve for x
    x = 14,361,605,377.44/104,629.60
  6. Step 6: Final answer
    x = 137,261.40

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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.