Home / 111,532.40-166,812.60-99,771.20

Finding the Fourth Proportional to 111,532.40, 166,812.60 and 99,771.20

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Solution

The fourth proportional to 111,532.40, 166,812.60 and 99,771.20 is: 149,222.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,532.40 : 166,812.60 = 99,771.20 : x
  2. Step 2: Convert to fraction form
    111,532.40/166,812.60 = 99,771.20/x
  3. Step 3: Cross multiply
    111,532.40x = 166,812.60 × 99,771.20
  4. Step 4: Simplify right side
    111,532.40x = 16,643,093,277.12
  5. Step 5: Solve for x
    x = 16,643,093,277.12/111,532.40
  6. Step 6: Final answer
    x = 149,222.05

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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.