Home / 109,651.23-164,542.45-100,728.27

Finding the Fourth Proportional to 109,651.23, 164,542.45 and 100,728.27

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Solution

The fourth proportional to 109,651.23, 164,542.45 and 100,728.27 is: 151,152.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,651.23 : 164,542.45 = 100,728.27 : x
  2. Step 2: Convert to fraction form
    109,651.23/164,542.45 = 100,728.27/x
  3. Step 3: Cross multiply
    109,651.23x = 164,542.45 × 100,728.27
  4. Step 4: Simplify right side
    109,651.23x = 16,574,076,078.24
  5. Step 5: Solve for x
    x = 16,574,076,078.24/109,651.23
  6. Step 6: Final answer
    x = 151,152.67

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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.