Home / 193,220.80-289,831.20-137,233.60

Finding the Fourth Proportional to 193,220.80, 289,831.20 and 137,233.60

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Solution

The fourth proportional to 193,220.80, 289,831.20 and 137,233.60 is: 205,850.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,220.80 : 289,831.20 = 137,233.60 : x
  2. Step 2: Convert to fraction form
    193,220.80/289,831.20 = 137,233.60/x
  3. Step 3: Cross multiply
    193,220.80x = 289,831.20 × 137,233.60
  4. Step 4: Simplify right side
    193,220.80x = 39,774,578,968.32
  5. Step 5: Solve for x
    x = 39,774,578,968.32/193,220.80
  6. Step 6: Final answer
    x = 205,850.40

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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.