Home / 189,554.39-261,581.55-104,669.63

Finding the Fourth Proportional to 189,554.39, 261,581.55 and 104,669.63

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Solution

The fourth proportional to 189,554.39, 261,581.55 and 104,669.63 is: 144,442.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,554.39 : 261,581.55 = 104,669.63 : x
  2. Step 2: Convert to fraction form
    189,554.39/261,581.55 = 104,669.63/x
  3. Step 3: Cross multiply
    189,554.39x = 261,581.55 × 104,669.63
  4. Step 4: Simplify right side
    189,554.39x = 27,379,642,745.42
  5. Step 5: Solve for x
    x = 27,379,642,745.42/189,554.39
  6. Step 6: Final answer
    x = 144,442.15

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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.