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Finding the Fourth Proportional to 161,139.78, 241,252.90 and 133,903.42

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Solution

The fourth proportional to 161,139.78, 241,252.90 and 133,903.42 is: 200,475.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,139.78 : 241,252.90 = 133,903.42 : x
  2. Step 2: Convert to fraction form
    161,139.78/241,252.90 = 133,903.42/x
  3. Step 3: Cross multiply
    161,139.78x = 241,252.90 × 133,903.42
  4. Step 4: Simplify right side
    161,139.78x = 32,304,587,457.03
  5. Step 5: Solve for x
    x = 32,304,587,457.03/161,139.78
  6. Step 6: Final answer
    x = 200,475.56

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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.