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Finding the Fourth Proportional to 189,037.68, 260,927.01 and 123,635.79

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Solution

The fourth proportional to 189,037.68, 260,927.01 and 123,635.79 is: 170,653.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,037.68 : 260,927.01 = 123,635.79 : x
  2. Step 2: Convert to fraction form
    189,037.68/260,927.01 = 123,635.79/x
  3. Step 3: Cross multiply
    189,037.68x = 260,927.01 × 123,635.79
  4. Step 4: Simplify right side
    189,037.68x = 32,259,917,013.69
  5. Step 5: Solve for x
    x = 32,259,917,013.69/189,037.68
  6. Step 6: Final answer
    x = 170,653.37

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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.