Home / 188,511.81-260,139.69-103,628.27

Finding the Fourth Proportional to 188,511.81, 260,139.69 and 103,628.27

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Solution

The fourth proportional to 188,511.81, 260,139.69 and 103,628.27 is: 143,003.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,511.81 : 260,139.69 = 103,628.27 : x
  2. Step 2: Convert to fraction form
    188,511.81/260,139.69 = 103,628.27/x
  3. Step 3: Cross multiply
    188,511.81x = 260,139.69 × 103,628.27
  4. Step 4: Simplify right side
    188,511.81x = 26,957,824,732.34
  5. Step 5: Solve for x
    x = 26,957,824,732.34/188,511.81
  6. Step 6: Final answer
    x = 143,003.37

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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.