Home / 86,849.21-130,076.99-68,011.85

Finding the Fourth Proportional to 86,849.21, 130,076.99 and 68,011.85

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Solution

The fourth proportional to 86,849.21, 130,076.99 and 68,011.85 is: 101,863.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,849.21 : 130,076.99 = 68,011.85 : x
  2. Step 2: Convert to fraction form
    86,849.21/130,076.99 = 68,011.85/x
  3. Step 3: Cross multiply
    86,849.21x = 130,076.99 × 68,011.85
  4. Step 4: Simplify right side
    86,849.21x = 8,846,776,972.51
  5. Step 5: Solve for x
    x = 8,846,776,972.51/86,849.21
  6. Step 6: Final answer
    x = 101,863.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.