Home / 120,499.26-180,861.02-61,379.19

Finding the Fourth Proportional to 120,499.26, 180,861.02 and 61,379.19

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Solution

The fourth proportional to 120,499.26, 180,861.02 and 61,379.19 is: 92,125.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,499.26 : 180,861.02 = 61,379.19 : x
  2. Step 2: Convert to fraction form
    120,499.26/180,861.02 = 61,379.19/x
  3. Step 3: Cross multiply
    120,499.26x = 180,861.02 × 61,379.19
  4. Step 4: Simplify right side
    120,499.26x = 11,101,102,603.28
  5. Step 5: Solve for x
    x = 11,101,102,603.28/120,499.26
  6. Step 6: Final answer
    x = 92,125.90

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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.