Home / 146,813.20-220,219.80-135,408.40

Finding the Fourth Proportional to 146,813.20, 220,219.80 and 135,408.40

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Solution

The fourth proportional to 146,813.20, 220,219.80 and 135,408.40 is: 203,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,813.20 : 220,219.80 = 135,408.40 : x
  2. Step 2: Convert to fraction form
    146,813.20/220,219.80 = 135,408.40/x
  3. Step 3: Cross multiply
    146,813.20x = 220,219.80 × 135,408.40
  4. Step 4: Simplify right side
    146,813.20x = 29,819,610,766.32
  5. Step 5: Solve for x
    x = 29,819,610,766.32/146,813.20
  6. Step 6: Final answer
    x = 203,112.60

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1.5x scale

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.