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Finding the Fourth Proportional to 188,695.26, 260,399.07 and 103,812.12

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Solution

The fourth proportional to 188,695.26, 260,399.07 and 103,812.12 is: 143,260.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,695.26 : 260,399.07 = 103,812.12 : x
  2. Step 2: Convert to fraction form
    188,695.26/260,399.07 = 103,812.12/x
  3. Step 3: Cross multiply
    188,695.26x = 260,399.07 × 103,812.12
  4. Step 4: Simplify right side
    188,695.26x = 27,032,579,502.73
  5. Step 5: Solve for x
    x = 27,032,579,502.73/188,695.26
  6. Step 6: Final answer
    x = 143,260.51

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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.