Home / 106,640.35-147,157.77-66,352.84

Finding the Fourth Proportional to 106,640.35, 147,157.77 and 66,352.84

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Solution

The fourth proportional to 106,640.35, 147,157.77 and 66,352.84 is: 91,563.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,640.35 : 147,157.77 = 66,352.84 : x
  2. Step 2: Convert to fraction form
    106,640.35/147,157.77 = 66,352.84/x
  3. Step 3: Cross multiply
    106,640.35x = 147,157.77 × 66,352.84
  4. Step 4: Simplify right side
    106,640.35x = 9,764,335,967.57
  5. Step 5: Solve for x
    x = 9,764,335,967.57/106,640.35
  6. Step 6: Final answer
    x = 91,563.24

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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.