Home / 135,864.72-203,796.88-89,106.64

Finding the Fourth Proportional to 135,864.72, 203,796.88 and 89,106.64

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Solution

The fourth proportional to 135,864.72, 203,796.88 and 89,106.64 is: 133,659.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,864.72 : 203,796.88 = 89,106.64 : x
  2. Step 2: Convert to fraction form
    135,864.72/203,796.88 = 89,106.64/x
  3. Step 3: Cross multiply
    135,864.72x = 203,796.88 × 89,106.64
  4. Step 4: Simplify right side
    135,864.72x = 18,159,655,219.28
  5. Step 5: Solve for x
    x = 18,159,655,219.28/135,864.72
  6. Step 6: Final answer
    x = 133,659.83

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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.