Home / 120,982.93-181,511.31-61,860.12

Finding the Fourth Proportional to 120,982.93, 181,511.31 and 61,860.12

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Solution

The fourth proportional to 120,982.93, 181,511.31 and 61,860.12 is: 92,809.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,982.93 : 181,511.31 = 61,860.12 : x
  2. Step 2: Convert to fraction form
    120,982.93/181,511.31 = 61,860.12/x
  3. Step 3: Cross multiply
    120,982.93x = 181,511.31 × 61,860.12
  4. Step 4: Simplify right side
    120,982.93x = 11,228,310,969.27
  5. Step 5: Solve for x
    x = 11,228,310,969.27/120,982.93
  6. Step 6: Final answer
    x = 92,809.05

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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.