Home / 120,958.92-181,520.94-42,072.36

Finding the Fourth Proportional to 120,958.92, 181,520.94 and 42,072.36

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Solution

The fourth proportional to 120,958.92, 181,520.94 and 42,072.36 is: 63,137.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,958.92 : 181,520.94 = 42,072.36 : x
  2. Step 2: Convert to fraction form
    120,958.92/181,520.94 = 42,072.36/x
  3. Step 3: Cross multiply
    120,958.92x = 181,520.94 × 42,072.36
  4. Step 4: Simplify right side
    120,958.92x = 7,637,014,335.22
  5. Step 5: Solve for x
    x = 7,637,014,335.22/120,958.92
  6. Step 6: Final answer
    x = 63,137.26

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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.