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Finding the Fourth Proportional to 188,693.26, 260,396.31 and 103,810.12

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Solution

The fourth proportional to 188,693.26, 260,396.31 and 103,810.12 is: 143,257.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,693.26 : 260,396.31 = 103,810.12 : x
  2. Step 2: Convert to fraction form
    188,693.26/260,396.31 = 103,810.12/x
  3. Step 3: Cross multiply
    188,693.26x = 260,396.31 × 103,810.12
  4. Step 4: Simplify right side
    188,693.26x = 27,031,772,188.66
  5. Step 5: Solve for x
    x = 27,031,772,188.66/188,693.26
  6. Step 6: Final answer
    x = 143,257.75

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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.