Home / 117,611.28-162,291.84-66,613.84

Finding the Fourth Proportional to 117,611.28, 162,291.84 and 66,613.84

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Solution

The fourth proportional to 117,611.28, 162,291.84 and 66,613.84 is: 91,920.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,611.28 : 162,291.84 = 66,613.84 : x
  2. Step 2: Convert to fraction form
    117,611.28/162,291.84 = 66,613.84/x
  3. Step 3: Cross multiply
    117,611.28x = 162,291.84 × 66,613.84
  4. Step 4: Simplify right side
    117,611.28x = 10,810,882,663.07
  5. Step 5: Solve for x
    x = 10,810,882,663.07/117,611.28
  6. Step 6: Final answer
    x = 91,920.46

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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.