Home / 111,983.90-154,535.46-60,997.20

Finding the Fourth Proportional to 111,983.90, 154,535.46 and 60,997.20

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Solution

The fourth proportional to 111,983.90, 154,535.46 and 60,997.20 is: 84,174.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,983.90 : 154,535.46 = 60,997.20 : x
  2. Step 2: Convert to fraction form
    111,983.90/154,535.46 = 60,997.20/x
  3. Step 3: Cross multiply
    111,983.90x = 154,535.46 × 60,997.20
  4. Step 4: Simplify right side
    111,983.90x = 9,426,230,360.71
  5. Step 5: Solve for x
    x = 9,426,230,360.71/111,983.90
  6. Step 6: Final answer
    x = 84,174.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.