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Finding the Fourth Proportional to 142,395.92, 213,593.88 and 53,669.34

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Solution

The fourth proportional to 142,395.92, 213,593.88 and 53,669.34 is: 80,504.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,395.92 : 213,593.88 = 53,669.34 : x
  2. Step 2: Convert to fraction form
    142,395.92/213,593.88 = 53,669.34/x
  3. Step 3: Cross multiply
    142,395.92x = 213,593.88 × 53,669.34
  4. Step 4: Simplify right side
    142,395.92x = 11,463,442,567.64
  5. Step 5: Solve for x
    x = 11,463,442,567.64/142,395.92
  6. Step 6: Final answer
    x = 80,504.01

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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.