Home / 98,005.63-135,289.17-66,217.60

Finding the Fourth Proportional to 98,005.63, 135,289.17 and 66,217.60

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Solution

The fourth proportional to 98,005.63, 135,289.17 and 66,217.60 is: 91,408.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,005.63 : 135,289.17 = 66,217.60 : x
  2. Step 2: Convert to fraction form
    98,005.63/135,289.17 = 66,217.60/x
  3. Step 3: Cross multiply
    98,005.63x = 135,289.17 × 66,217.60
  4. Step 4: Simplify right side
    98,005.63x = 8,958,524,143.39
  5. Step 5: Solve for x
    x = 8,958,524,143.39/98,005.63
  6. Step 6: Final answer
    x = 91,408.26

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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.