Home / 111,018.20-166,527.30-99,354.20

Finding the Fourth Proportional to 111,018.20, 166,527.30 and 99,354.20

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Solution

The fourth proportional to 111,018.20, 166,527.30 and 99,354.20 is: 149,031.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,018.20 : 166,527.30 = 99,354.20 : x
  2. Step 2: Convert to fraction form
    111,018.20/166,527.30 = 99,354.20/x
  3. Step 3: Cross multiply
    111,018.20x = 166,527.30 × 99,354.20
  4. Step 4: Simplify right side
    111,018.20x = 16,545,186,669.66
  5. Step 5: Solve for x
    x = 16,545,186,669.66/111,018.20
  6. Step 6: Final answer
    x = 149,031.30

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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.