Home / 118,528.80-163,288.08-82,653.60

Finding the Fourth Proportional to 118,528.80, 163,288.08 and 82,653.60

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Solution

The fourth proportional to 118,528.80, 163,288.08 and 82,653.60 is: 113,865.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,528.80 : 163,288.08 = 82,653.60 : x
  2. Step 2: Convert to fraction form
    118,528.80/163,288.08 = 82,653.60/x
  3. Step 3: Cross multiply
    118,528.80x = 163,288.08 × 82,653.60
  4. Step 4: Simplify right side
    118,528.80x = 13,496,347,649.09
  5. Step 5: Solve for x
    x = 13,496,347,649.09/118,528.80
  6. Step 6: Final answer
    x = 113,865.56

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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.