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Finding the Fourth Proportional to 119,285, 164,595.51 and 68,289.68

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Solution

The fourth proportional to 119,285, 164,595.51 and 68,289.68 is: 94,229.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,285 : 164,595.51 = 68,289.68 : x
  2. Step 2: Convert to fraction form
    119,285/164,595.51 = 68,289.68/x
  3. Step 3: Cross multiply
    119,285x = 164,595.51 × 68,289.68
  4. Step 4: Simplify right side
    119,285x = 11,240,174,707.34
  5. Step 5: Solve for x
    x = 11,240,174,707.34/119,285
  6. Step 6: Final answer
    x = 94,229.57

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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.