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Finding the Fourth Proportional to 135,678.62, 203,466.81 and 56,798.30

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Solution

The fourth proportional to 135,678.62, 203,466.81 and 56,798.30 is: 85,176.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,678.62 : 203,466.81 = 56,798.30 : x
  2. Step 2: Convert to fraction form
    135,678.62/203,466.81 = 56,798.30/x
  3. Step 3: Cross multiply
    135,678.62x = 203,466.81 × 56,798.30
  4. Step 4: Simplify right side
    135,678.62x = 11,556,568,914.42
  5. Step 5: Solve for x
    x = 11,556,568,914.42/135,678.62
  6. Step 6: Final answer
    x = 85,176.05

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1.5x scale

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.