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Finding the Fourth Proportional to 109,335.80, 163,614.90 and 100,004.60

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Solution

The fourth proportional to 109,335.80, 163,614.90 and 100,004.60 is: 149,651.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,335.80 : 163,614.90 = 100,004.60 : x
  2. Step 2: Convert to fraction form
    109,335.80/163,614.90 = 100,004.60/x
  3. Step 3: Cross multiply
    109,335.80x = 163,614.90 × 100,004.60
  4. Step 4: Simplify right side
    109,335.80x = 16,362,242,628.54
  5. Step 5: Solve for x
    x = 16,362,242,628.54/109,335.80
  6. Step 6: Final answer
    x = 149,651.28

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1.5x scale

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.