Home / 106,820.98-147,315.41-91,708.81

Finding the Fourth Proportional to 106,820.98, 147,315.41 and 91,708.81

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Solution

The fourth proportional to 106,820.98, 147,315.41 and 91,708.81 is: 126,474.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,820.98 : 147,315.41 = 91,708.81 : x
  2. Step 2: Convert to fraction form
    106,820.98/147,315.41 = 91,708.81/x
  3. Step 3: Cross multiply
    106,820.98x = 147,315.41 × 91,708.81
  4. Step 4: Simplify right side
    106,820.98x = 13,510,120,462.84
  5. Step 5: Solve for x
    x = 13,510,120,462.84/106,820.98
  6. Step 6: Final answer
    x = 126,474.41

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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.