Home / 120,296.44-180,362.64-61,017.80

Finding the Fourth Proportional to 120,296.44, 180,362.64 and 61,017.80

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Solution

The fourth proportional to 120,296.44, 180,362.64 and 61,017.80 is: 91,485.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,296.44 : 180,362.64 = 61,017.80 : x
  2. Step 2: Convert to fraction form
    120,296.44/180,362.64 = 61,017.80/x
  3. Step 3: Cross multiply
    120,296.44x = 180,362.64 × 61,017.80
  4. Step 4: Simplify right side
    120,296.44x = 11,005,331,494.99
  5. Step 5: Solve for x
    x = 11,005,331,494.99/120,296.44
  6. Step 6: Final answer
    x = 91,485.10

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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.