Home / 102,822.40-141,968.46-80,186.68

Finding the Fourth Proportional to 102,822.40, 141,968.46 and 80,186.68

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Solution

The fourth proportional to 102,822.40, 141,968.46 and 80,186.68 is: 110,714.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,822.40 : 141,968.46 = 80,186.68 : x
  2. Step 2: Convert to fraction form
    102,822.40/141,968.46 = 80,186.68/x
  3. Step 3: Cross multiply
    102,822.40x = 141,968.46 × 80,186.68
  4. Step 4: Simplify right side
    102,822.40x = 11,383,979,472.11
  5. Step 5: Solve for x
    x = 11,383,979,472.11/102,822.40
  6. Step 6: Final answer
    x = 110,714.98

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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.