Home / 99,637.20-149,455.80-33,087.60

Finding the Fourth Proportional to 99,637.20, 149,455.80 and 33,087.60

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Solution

The fourth proportional to 99,637.20, 149,455.80 and 33,087.60 is: 49,631.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,637.20 : 149,455.80 = 33,087.60 : x
  2. Step 2: Convert to fraction form
    99,637.20/149,455.80 = 33,087.60/x
  3. Step 3: Cross multiply
    99,637.20x = 149,455.80 × 33,087.60
  4. Step 4: Simplify right side
    99,637.20x = 4,945,133,728.08
  5. Step 5: Solve for x
    x = 4,945,133,728.08/99,637.20
  6. Step 6: Final answer
    x = 49,631.40

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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.