Home / 189,740.82-261,852.48-109,180.65

Finding the Fourth Proportional to 189,740.82, 261,852.48 and 109,180.65

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Solution

The fourth proportional to 189,740.82, 261,852.48 and 109,180.65 is: 150,675.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,740.82 : 261,852.48 = 109,180.65 : x
  2. Step 2: Convert to fraction form
    189,740.82/261,852.48 = 109,180.65/x
  3. Step 3: Cross multiply
    189,740.82x = 261,852.48 × 109,180.65
  4. Step 4: Simplify right side
    189,740.82x = 28,589,223,970.51
  5. Step 5: Solve for x
    x = 28,589,223,970.51/189,740.82
  6. Step 6: Final answer
    x = 150,675.14

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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.