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Finding the Fourth Proportional to 135,762.48, 187,343.21 and 75,329.29

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Solution

The fourth proportional to 135,762.48, 187,343.21 and 75,329.29 is: 103,949.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,762.48 : 187,343.21 = 75,329.29 : x
  2. Step 2: Convert to fraction form
    135,762.48/187,343.21 = 75,329.29/x
  3. Step 3: Cross multiply
    135,762.48x = 187,343.21 × 75,329.29
  4. Step 4: Simplify right side
    135,762.48x = 14,112,430,058.90
  5. Step 5: Solve for x
    x = 14,112,430,058.90/135,762.48
  6. Step 6: Final answer
    x = 103,949.42

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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.