Home / 102,183.45-153,119.03-42,986.67

Finding the Fourth Proportional to 102,183.45, 153,119.03 and 42,986.67

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Solution

The fourth proportional to 102,183.45, 153,119.03 and 42,986.67 is: 64,414.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,183.45 : 153,119.03 = 42,986.67 : x
  2. Step 2: Convert to fraction form
    102,183.45/153,119.03 = 42,986.67/x
  3. Step 3: Cross multiply
    102,183.45x = 153,119.03 × 42,986.67
  4. Step 4: Simplify right side
    102,183.45x = 6,582,076,998.40
  5. Step 5: Solve for x
    x = 6,582,076,998.40/102,183.45
  6. Step 6: Final answer
    x = 64,414.32

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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.