Home / 155,246.60-214,231.56-91,604.90

Finding the Fourth Proportional to 155,246.60, 214,231.56 and 91,604.90

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Solution

The fourth proportional to 155,246.60, 214,231.56 and 91,604.90 is: 126,409.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,246.60 : 214,231.56 = 91,604.90 : x
  2. Step 2: Convert to fraction form
    155,246.60/214,231.56 = 91,604.90/x
  3. Step 3: Cross multiply
    155,246.60x = 214,231.56 × 91,604.90
  4. Step 4: Simplify right side
    155,246.60x = 19,624,660,630.64
  5. Step 5: Solve for x
    x = 19,624,660,630.64/155,246.60
  6. Step 6: Final answer
    x = 126,409.60

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1.5x scale

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.