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Finding the Fourth Proportional to 104,812.86, 144,637.86 and 57,065.25

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Solution

The fourth proportional to 104,812.86, 144,637.86 and 57,065.25 is: 78,747.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,812.86 : 144,637.86 = 57,065.25 : x
  2. Step 2: Convert to fraction form
    104,812.86/144,637.86 = 57,065.25/x
  3. Step 3: Cross multiply
    104,812.86x = 144,637.86 × 57,065.25
  4. Step 4: Simplify right side
    104,812.86x = 8,253,795,640.37
  5. Step 5: Solve for x
    x = 8,253,795,640.37/104,812.86
  6. Step 6: Final answer
    x = 78,747.93

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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.