Home / 111,018.12-166,489.56-36,119.76

Finding the Fourth Proportional to 111,018.12, 166,489.56 and 36,119.76

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Solution

The fourth proportional to 111,018.12, 166,489.56 and 36,119.76 is: 54,167.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,018.12 : 166,489.56 = 36,119.76 : x
  2. Step 2: Convert to fraction form
    111,018.12/166,489.56 = 36,119.76/x
  3. Step 3: Cross multiply
    111,018.12x = 166,489.56 × 36,119.76
  4. Step 4: Simplify right side
    111,018.12x = 6,013,562,949.71
  5. Step 5: Solve for x
    x = 6,013,562,949.71/111,018.12
  6. Step 6: Final answer
    x = 54,167.40

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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.