Home / 120,579.33-180,990.63-106,631.13

Finding the Fourth Proportional to 120,579.33, 180,990.63 and 106,631.13

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Solution

The fourth proportional to 120,579.33, 180,990.63 and 106,631.13 is: 160,054.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,579.33 : 180,990.63 = 106,631.13 : x
  2. Step 2: Convert to fraction form
    120,579.33/180,990.63 = 106,631.13/x
  3. Step 3: Cross multiply
    120,579.33x = 180,990.63 × 106,631.13
  4. Step 4: Simplify right side
    120,579.33x = 19,299,235,396.31
  5. Step 5: Solve for x
    x = 19,299,235,396.31/120,579.33
  6. Step 6: Final answer
    x = 160,054.26

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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.