Home / 111,840.17-154,289.27-75,529.82

Finding the Fourth Proportional to 111,840.17, 154,289.27 and 75,529.82

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Solution

The fourth proportional to 111,840.17, 154,289.27 and 75,529.82 is: 104,197.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,840.17 : 154,289.27 = 75,529.82 : x
  2. Step 2: Convert to fraction form
    111,840.17/154,289.27 = 75,529.82/x
  3. Step 3: Cross multiply
    111,840.17x = 154,289.27 × 75,529.82
  4. Step 4: Simplify right side
    111,840.17x = 11,653,440,019.59
  5. Step 5: Solve for x
    x = 11,653,440,019.59/111,840.17
  6. Step 6: Final answer
    x = 104,197.27

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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.