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Finding the Fourth Proportional to 161,327.10, 241,990.65 and 82,415.10

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Solution

The fourth proportional to 161,327.10, 241,990.65 and 82,415.10 is: 123,622.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,327.10 : 241,990.65 = 82,415.10 : x
  2. Step 2: Convert to fraction form
    161,327.10/241,990.65 = 82,415.10/x
  3. Step 3: Cross multiply
    161,327.10x = 241,990.65 × 82,415.10
  4. Step 4: Simplify right side
    161,327.10x = 19,943,683,618.82
  5. Step 5: Solve for x
    x = 19,943,683,618.82/161,327.10
  6. Step 6: Final answer
    x = 123,622.65

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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.