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Finding the Fourth Proportional to 144,356.60, 199,216.52 and 80,697.08

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Solution

The fourth proportional to 144,356.60, 199,216.52 and 80,697.08 is: 111,364.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,356.60 : 199,216.52 = 80,697.08 : x
  2. Step 2: Convert to fraction form
    144,356.60/199,216.52 = 80,697.08/x
  3. Step 3: Cross multiply
    144,356.60x = 199,216.52 × 80,697.08
  4. Step 4: Simplify right side
    144,356.60x = 16,076,190,052.19
  5. Step 5: Solve for x
    x = 16,076,190,052.19/144,356.60
  6. Step 6: Final answer
    x = 111,364.43

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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.