Home / 189,729.80-261,842.01-108,061.52

Finding the Fourth Proportional to 189,729.80, 261,842.01 and 108,061.52

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Solution

The fourth proportional to 189,729.80, 261,842.01 and 108,061.52 is: 149,133.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,729.80 : 261,842.01 = 108,061.52 : x
  2. Step 2: Convert to fraction form
    189,729.80/261,842.01 = 108,061.52/x
  3. Step 3: Cross multiply
    189,729.80x = 261,842.01 × 108,061.52
  4. Step 4: Simplify right side
    189,729.80x = 28,295,044,291.25
  5. Step 5: Solve for x
    x = 28,295,044,291.25/189,729.80
  6. Step 6: Final answer
    x = 149,133.37

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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.