Home / 140,694.48-194,157.72-77,031.72

Finding the Fourth Proportional to 140,694.48, 194,157.72 and 77,031.72

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Solution

The fourth proportional to 140,694.48, 194,157.72 and 77,031.72 is: 106,303.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,694.48 : 194,157.72 = 77,031.72 : x
  2. Step 2: Convert to fraction form
    140,694.48/194,157.72 = 77,031.72/x
  3. Step 3: Cross multiply
    140,694.48x = 194,157.72 × 77,031.72
  4. Step 4: Simplify right side
    140,694.48x = 14,956,303,122.88
  5. Step 5: Solve for x
    x = 14,956,303,122.88/140,694.48
  6. Step 6: Final answer
    x = 106,303.41

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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.