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Finding the Fourth Proportional to 189,601, 261,649.38 and 104,723.53

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Solution

The fourth proportional to 189,601, 261,649.38 and 104,723.53 is: 144,518.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,601 : 261,649.38 = 104,723.53 : x
  2. Step 2: Convert to fraction form
    189,601/261,649.38 = 104,723.53/x
  3. Step 3: Cross multiply
    189,601x = 261,649.38 × 104,723.53
  4. Step 4: Simplify right side
    189,601x = 27,400,846,695.91
  5. Step 5: Solve for x
    x = 27,400,846,695.91/189,601
  6. Step 6: Final answer
    x = 144,518.47

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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.