Home / 140,912.16-194,463.36-77,256.96

Finding the Fourth Proportional to 140,912.16, 194,463.36 and 77,256.96

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Solution

The fourth proportional to 140,912.16, 194,463.36 and 77,256.96 is: 106,617.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,912.16 : 194,463.36 = 77,256.96 : x
  2. Step 2: Convert to fraction form
    140,912.16/194,463.36 = 77,256.96/x
  3. Step 3: Cross multiply
    140,912.16x = 194,463.36 × 77,256.96
  4. Step 4: Simplify right side
    140,912.16x = 15,023,648,024.99
  5. Step 5: Solve for x
    x = 15,023,648,024.99/140,912.16
  6. Step 6: Final answer
    x = 106,617.12

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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.