Home / 118,629.73-163,709.03-64,914.75

Finding the Fourth Proportional to 118,629.73, 163,709.03 and 64,914.75

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Solution

The fourth proportional to 118,629.73, 163,709.03 and 64,914.75 is: 89,582.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,629.73 : 163,709.03 = 64,914.75 : x
  2. Step 2: Convert to fraction form
    118,629.73/163,709.03 = 64,914.75/x
  3. Step 3: Cross multiply
    118,629.73x = 163,709.03 × 64,914.75
  4. Step 4: Simplify right side
    118,629.73x = 10,627,130,755.19
  5. Step 5: Solve for x
    x = 10,627,130,755.19/118,629.73
  6. Step 6: Final answer
    x = 89,582.36

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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.