Home / 111,005.20-166,507.80-99,341.20

Finding the Fourth Proportional to 111,005.20, 166,507.80 and 99,341.20

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Solution

The fourth proportional to 111,005.20, 166,507.80 and 99,341.20 is: 149,011.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,005.20 : 166,507.80 = 99,341.20 : x
  2. Step 2: Convert to fraction form
    111,005.20/166,507.80 = 99,341.20/x
  3. Step 3: Cross multiply
    111,005.20x = 166,507.80 × 99,341.20
  4. Step 4: Simplify right side
    111,005.20x = 16,541,084,661.36
  5. Step 5: Solve for x
    x = 16,541,084,661.36/111,005.20
  6. Step 6: Final answer
    x = 149,011.80

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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.