Home / 188,699.22-260,401.23-103,817.70

Finding the Fourth Proportional to 188,699.22, 260,401.23 and 103,817.70

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Solution

The fourth proportional to 188,699.22, 260,401.23 and 103,817.70 is: 143,266.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,699.22 : 260,401.23 = 103,817.70 : x
  2. Step 2: Convert to fraction form
    188,699.22/260,401.23 = 103,817.70/x
  3. Step 3: Cross multiply
    188,699.22x = 260,401.23 × 103,817.70
  4. Step 4: Simplify right side
    188,699.22x = 27,034,256,775.77
  5. Step 5: Solve for x
    x = 27,034,256,775.77/188,699.22
  6. Step 6: Final answer
    x = 143,266.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.