Home / 189,849.88-261,984.54-103,807.24

Finding the Fourth Proportional to 189,849.88, 261,984.54 and 103,807.24

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Solution

The fourth proportional to 189,849.88, 261,984.54 and 103,807.24 is: 143,249.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,849.88 : 261,984.54 = 103,807.24 : x
  2. Step 2: Convert to fraction form
    189,849.88/261,984.54 = 103,807.24/x
  3. Step 3: Cross multiply
    189,849.88x = 261,984.54 × 103,807.24
  4. Step 4: Simplify right side
    189,849.88x = 27,195,892,020.07
  5. Step 5: Solve for x
    x = 27,195,892,020.07/189,849.88
  6. Step 6: Final answer
    x = 143,249.46

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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.