Home / 189,628.62-261,674.19-104,739

Finding the Fourth Proportional to 189,628.62, 261,674.19 and 104,739

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Solution

The fourth proportional to 189,628.62, 261,674.19 and 104,739 is: 144,532.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,628.62 : 261,674.19 = 104,739 : x
  2. Step 2: Convert to fraction form
    189,628.62/261,674.19 = 104,739/x
  3. Step 3: Cross multiply
    189,628.62x = 261,674.19 × 104,739
  4. Step 4: Simplify right side
    189,628.62x = 27,407,492,986.41
  5. Step 5: Solve for x
    x = 27,407,492,986.41/189,628.62
  6. Step 6: Final answer
    x = 144,532.47

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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.