Home / 185,828.46-278,742.69-80,647.43

Finding the Fourth Proportional to 185,828.46, 278,742.69 and 80,647.43

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Solution

The fourth proportional to 185,828.46, 278,742.69 and 80,647.43 is: 120,971.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,828.46 : 278,742.69 = 80,647.43 : x
  2. Step 2: Convert to fraction form
    185,828.46/278,742.69 = 80,647.43/x
  3. Step 3: Cross multiply
    185,828.46x = 278,742.69 × 80,647.43
  4. Step 4: Simplify right side
    185,828.46x = 22,479,880,186.07
  5. Step 5: Solve for x
    x = 22,479,880,186.07/185,828.46
  6. Step 6: Final answer
    x = 120,971.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.