Home / 206,132.40-309,166.20-72,993.60

Finding the Fourth Proportional to 206,132.40, 309,166.20 and 72,993.60

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Solution

The fourth proportional to 206,132.40, 309,166.20 and 72,993.60 is: 109,478.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,132.40 : 309,166.20 = 72,993.60 : x
  2. Step 2: Convert to fraction form
    206,132.40/309,166.20 = 72,993.60/x
  3. Step 3: Cross multiply
    206,132.40x = 309,166.20 × 72,993.60
  4. Step 4: Simplify right side
    206,132.40x = 22,567,153,936.32
  5. Step 5: Solve for x
    x = 22,567,153,936.32/206,132.40
  6. Step 6: Final answer
    x = 109,478.93

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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.