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Finding the Fourth Proportional to 188,735.63, 260,456.99 and 103,854.51

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Solution

The fourth proportional to 188,735.63, 260,456.99 and 103,854.51 is: 143,320.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,735.63 : 260,456.99 = 103,854.51 : x
  2. Step 2: Convert to fraction form
    188,735.63/260,456.99 = 103,854.51/x
  3. Step 3: Cross multiply
    188,735.63x = 260,456.99 × 103,854.51
  4. Step 4: Simplify right side
    188,735.63x = 27,049,632,553.25
  5. Step 5: Solve for x
    x = 27,049,632,553.25/188,735.63
  6. Step 6: Final answer
    x = 143,320.23

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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.