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Finding the Fourth Proportional to 103,859.23, 143,329.92 and 58,539.10

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Solution

The fourth proportional to 103,859.23, 143,329.92 and 58,539.10 is: 80,786.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,859.23 : 143,329.92 = 58,539.10 : x
  2. Step 2: Convert to fraction form
    103,859.23/143,329.92 = 58,539.10/x
  3. Step 3: Cross multiply
    103,859.23x = 143,329.92 × 58,539.10
  4. Step 4: Simplify right side
    103,859.23x = 8,390,404,227.18
  5. Step 5: Solve for x
    x = 8,390,404,227.18/103,859.23
  6. Step 6: Final answer
    x = 80,786.31

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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.