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Finding the Fourth Proportional to 119,018.87, 164,249.08 and 65,303.88

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Solution

The fourth proportional to 119,018.87, 164,249.08 and 65,303.88 is: 90,121.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,018.87 : 164,249.08 = 65,303.88 : x
  2. Step 2: Convert to fraction form
    119,018.87/164,249.08 = 65,303.88/x
  3. Step 3: Cross multiply
    119,018.87x = 164,249.08 × 65,303.88
  4. Step 4: Simplify right side
    119,018.87x = 10,726,101,431.24
  5. Step 5: Solve for x
    x = 10,726,101,431.24/119,018.87
  6. Step 6: Final answer
    x = 90,121.01

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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.