Home / 120,085.10-180,131.31-41,198.21

Finding the Fourth Proportional to 120,085.10, 180,131.31 and 41,198.21

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Solution

The fourth proportional to 120,085.10, 180,131.31 and 41,198.21 is: 61,798.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,085.10 : 180,131.31 = 41,198.21 : x
  2. Step 2: Convert to fraction form
    120,085.10/180,131.31 = 41,198.21/x
  3. Step 3: Cross multiply
    120,085.10x = 180,131.31 × 41,198.21
  4. Step 4: Simplify right side
    120,085.10x = 7,421,087,536.96
  5. Step 5: Solve for x
    x = 7,421,087,536.96/120,085.10
  6. Step 6: Final answer
    x = 61,798.57

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1.5x scale

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.