Home / 71,298.36-107,058.24-68,142.60

Finding the Fourth Proportional to 71,298.36, 107,058.24 and 68,142.60

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Solution

The fourth proportional to 71,298.36, 107,058.24 and 68,142.60 is: 102,319.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,298.36 : 107,058.24 = 68,142.60 : x
  2. Step 2: Convert to fraction form
    71,298.36/107,058.24 = 68,142.60/x
  3. Step 3: Cross multiply
    71,298.36x = 107,058.24 × 68,142.60
  4. Step 4: Simplify right side
    71,298.36x = 7,295,226,825.02
  5. Step 5: Solve for x
    x = 7,295,226,825.02/71,298.36
  6. Step 6: Final answer
    x = 102,319.70

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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.