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Finding the Fourth Proportional to 161,904.40, 223,480.56 and 108,201.40

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Solution

The fourth proportional to 161,904.40, 223,480.56 and 108,201.40 is: 149,353.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,904.40 : 223,480.56 = 108,201.40 : x
  2. Step 2: Convert to fraction form
    161,904.40/223,480.56 = 108,201.40/x
  3. Step 3: Cross multiply
    161,904.40x = 223,480.56 × 108,201.40
  4. Step 4: Simplify right side
    161,904.40x = 24,180,909,464.78
  5. Step 5: Solve for x
    x = 24,180,909,464.78/161,904.40
  6. Step 6: Final answer
    x = 149,353.01

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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.