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Finding the Fourth Proportional to 189,625.87, 261,670.40 and 104,736.25

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Solution

The fourth proportional to 189,625.87, 261,670.40 and 104,736.25 is: 144,528.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,625.87 : 261,670.40 = 104,736.25 : x
  2. Step 2: Convert to fraction form
    189,625.87/261,670.40 = 104,736.25/x
  3. Step 3: Cross multiply
    189,625.87x = 261,670.40 × 104,736.25
  4. Step 4: Simplify right side
    189,625.87x = 27,406,375,908.32
  5. Step 5: Solve for x
    x = 27,406,375,908.32/189,625.87
  6. Step 6: Final answer
    x = 144,528.68

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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.