Home / 188,511.45-260,139.18-103,627.89

Finding the Fourth Proportional to 188,511.45, 260,139.18 and 103,627.89

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Solution

The fourth proportional to 188,511.45, 260,139.18 and 103,627.89 is: 143,002.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,511.45 : 260,139.18 = 103,627.89 : x
  2. Step 2: Convert to fraction form
    188,511.45/260,139.18 = 103,627.89/x
  3. Step 3: Cross multiply
    188,511.45x = 260,139.18 × 103,627.89
  4. Step 4: Simplify right side
    188,511.45x = 26,957,674,329.73
  5. Step 5: Solve for x
    x = 26,957,674,329.73/188,511.45
  6. Step 6: Final answer
    x = 143,002.85

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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.