Home / 105,989.96-146,205.24-66,176.84

Finding the Fourth Proportional to 105,989.96, 146,205.24 and 66,176.84

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Solution

The fourth proportional to 105,989.96, 146,205.24 and 66,176.84 is: 91,286.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,989.96 : 146,205.24 = 66,176.84 : x
  2. Step 2: Convert to fraction form
    105,989.96/146,205.24 = 66,176.84/x
  3. Step 3: Cross multiply
    105,989.96x = 146,205.24 × 66,176.84
  4. Step 4: Simplify right side
    105,989.96x = 9,675,400,774.64
  5. Step 5: Solve for x
    x = 9,675,400,774.64/105,989.96
  6. Step 6: Final answer
    x = 91,286.01

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1.5x scale

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.