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Finding the Fourth Proportional to 104,868, 157,263.66 and 38,288.43

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Solution

The fourth proportional to 104,868, 157,263.66 and 38,288.43 is: 57,418.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,868 : 157,263.66 = 38,288.43 : x
  2. Step 2: Convert to fraction form
    104,868/157,263.66 = 38,288.43/x
  3. Step 3: Cross multiply
    104,868x = 157,263.66 × 38,288.43
  4. Step 4: Simplify right side
    104,868x = 6,021,378,637.45
  5. Step 5: Solve for x
    x = 6,021,378,637.45/104,868
  6. Step 6: Final answer
    x = 57,418.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.