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Finding the Fourth Proportional to 119,145.40, 164,424.48 and 68,844.40

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Solution

The fourth proportional to 119,145.40, 164,424.48 and 68,844.40 is: 95,007.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,145.40 : 164,424.48 = 68,844.40 : x
  2. Step 2: Convert to fraction form
    119,145.40/164,424.48 = 68,844.40/x
  3. Step 3: Cross multiply
    119,145.40x = 164,424.48 × 68,844.40
  4. Step 4: Simplify right side
    119,145.40x = 11,319,704,670.91
  5. Step 5: Solve for x
    x = 11,319,704,670.91/119,145.40
  6. Step 6: Final answer
    x = 95,007.48

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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.