Home / 163,935.21-226,233.79-99,388.64

Finding the Fourth Proportional to 163,935.21, 226,233.79 and 99,388.64

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Solution

The fourth proportional to 163,935.21, 226,233.79 and 99,388.64 is: 137,158.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,935.21 : 226,233.79 = 99,388.64 : x
  2. Step 2: Convert to fraction form
    163,935.21/226,233.79 = 99,388.64/x
  3. Step 3: Cross multiply
    163,935.21x = 226,233.79 × 99,388.64
  4. Step 4: Simplify right side
    163,935.21x = 22,485,068,313.75
  5. Step 5: Solve for x
    x = 22,485,068,313.75/163,935.21
  6. Step 6: Final answer
    x = 137,158.26

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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.