Home / 118,629.93-163,709.10-64,914.93

Finding the Fourth Proportional to 118,629.93, 163,709.10 and 64,914.93

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Solution

The fourth proportional to 118,629.93, 163,709.10 and 64,914.93 is: 89,582.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,629.93 : 163,709.10 = 64,914.93 : x
  2. Step 2: Convert to fraction form
    118,629.93/163,709.10 = 64,914.93/x
  3. Step 3: Cross multiply
    118,629.93x = 163,709.10 × 64,914.93
  4. Step 4: Simplify right side
    118,629.93x = 10,627,164,766.86
  5. Step 5: Solve for x
    x = 10,627,164,766.86/118,629.93
  6. Step 6: Final answer
    x = 89,582.49

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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.