Home / 140,872.06-194,402.34-77,209.72

Finding the Fourth Proportional to 140,872.06, 194,402.34 and 77,209.72

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Solution

The fourth proportional to 140,872.06, 194,402.34 and 77,209.72 is: 106,548.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,872.06 : 194,402.34 = 77,209.72 : x
  2. Step 2: Convert to fraction form
    140,872.06/194,402.34 = 77,209.72/x
  3. Step 3: Cross multiply
    140,872.06x = 194,402.34 × 77,209.72
  4. Step 4: Simplify right side
    140,872.06x = 15,009,750,238.74
  5. Step 5: Solve for x
    x = 15,009,750,238.74/140,872.06
  6. Step 6: Final answer
    x = 106,548.81

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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.