Home / 140,676.72-194,075.28-102,885.36

Finding the Fourth Proportional to 140,676.72, 194,075.28 and 102,885.36

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Solution

The fourth proportional to 140,676.72, 194,075.28 and 102,885.36 is: 141,938.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,676.72 : 194,075.28 = 102,885.36 : x
  2. Step 2: Convert to fraction form
    140,676.72/194,075.28 = 102,885.36/x
  3. Step 3: Cross multiply
    140,676.72x = 194,075.28 × 102,885.36
  4. Step 4: Simplify right side
    140,676.72x = 19,967,505,049.90
  5. Step 5: Solve for x
    x = 19,967,505,049.90/140,676.72
  6. Step 6: Final answer
    x = 141,938.94

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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.