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Finding the Fourth Proportional to 188,892, 260,670.96 and 104,008.86

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Solution

The fourth proportional to 188,892, 260,670.96 and 104,008.86 is: 143,532.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,892 : 260,670.96 = 104,008.86 : x
  2. Step 2: Convert to fraction form
    188,892/260,670.96 = 104,008.86/x
  3. Step 3: Cross multiply
    188,892x = 260,670.96 × 104,008.86
  4. Step 4: Simplify right side
    188,892x = 27,112,089,384.71
  5. Step 5: Solve for x
    x = 27,112,089,384.71/188,892
  6. Step 6: Final answer
    x = 143,532.23

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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.