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Finding the Fourth Proportional to 117,714.40, 176,571.60 and 108,728.80

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Solution

The fourth proportional to 117,714.40, 176,571.60 and 108,728.80 is: 163,093.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,714.40 : 176,571.60 = 108,728.80 : x
  2. Step 2: Convert to fraction form
    117,714.40/176,571.60 = 108,728.80/x
  3. Step 3: Cross multiply
    117,714.40x = 176,571.60 × 108,728.80
  4. Step 4: Simplify right side
    117,714.40x = 19,198,418,182.08
  5. Step 5: Solve for x
    x = 19,198,418,182.08/117,714.40
  6. Step 6: Final answer
    x = 163,093.20

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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.