Home / 111,025.20-166,537.80-99,361.20

Finding the Fourth Proportional to 111,025.20, 166,537.80 and 99,361.20

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Solution

The fourth proportional to 111,025.20, 166,537.80 and 99,361.20 is: 149,041.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,025.20 : 166,537.80 = 99,361.20 : x
  2. Step 2: Convert to fraction form
    111,025.20/166,537.80 = 99,361.20/x
  3. Step 3: Cross multiply
    111,025.20x = 166,537.80 × 99,361.20
  4. Step 4: Simplify right side
    111,025.20x = 16,547,395,653.36
  5. Step 5: Solve for x
    x = 16,547,395,653.36/111,025.20
  6. Step 6: Final answer
    x = 149,041.80

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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.