Home / 111,018.10-166,528.75-36,138.64

Finding the Fourth Proportional to 111,018.10, 166,528.75 and 36,138.64

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Solution

The fourth proportional to 111,018.10, 166,528.75 and 36,138.64 is: 54,208.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,018.10 : 166,528.75 = 36,138.64 : x
  2. Step 2: Convert to fraction form
    111,018.10/166,528.75 = 36,138.64/x
  3. Step 3: Cross multiply
    111,018.10x = 166,528.75 × 36,138.64
  4. Step 4: Simplify right side
    111,018.10x = 6,018,122,545.90
  5. Step 5: Solve for x
    x = 6,018,122,545.90/111,018.10
  6. Step 6: Final answer
    x = 54,208.48

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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.