Home / 117,613.55-162,270.95-66,618.18

Finding the Fourth Proportional to 117,613.55, 162,270.95 and 66,618.18

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Solution

The fourth proportional to 117,613.55, 162,270.95 and 66,618.18 is: 91,912.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,613.55 : 162,270.95 = 66,618.18 : x
  2. Step 2: Convert to fraction form
    117,613.55/162,270.95 = 66,618.18/x
  3. Step 3: Cross multiply
    117,613.55x = 162,270.95 × 66,618.18
  4. Step 4: Simplify right side
    117,613.55x = 10,810,195,022.78
  5. Step 5: Solve for x
    x = 10,810,195,022.78/117,613.55
  6. Step 6: Final answer
    x = 91,912.83

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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.