Home / 97,729.20-146,593.80-74,109.60

Finding the Fourth Proportional to 97,729.20, 146,593.80 and 74,109.60

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Solution

The fourth proportional to 97,729.20, 146,593.80 and 74,109.60 is: 111,164.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,729.20 : 146,593.80 = 74,109.60 : x
  2. Step 2: Convert to fraction form
    97,729.20/146,593.80 = 74,109.60/x
  3. Step 3: Cross multiply
    97,729.20x = 146,593.80 × 74,109.60
  4. Step 4: Simplify right side
    97,729.20x = 10,864,007,880.48
  5. Step 5: Solve for x
    x = 10,864,007,880.48/97,729.20
  6. Step 6: Final answer
    x = 111,164.40

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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.