Home / 137,800.27-190,116.36-86,817.56

Finding the Fourth Proportional to 137,800.27, 190,116.36 and 86,817.56

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Solution

The fourth proportional to 137,800.27, 190,116.36 and 86,817.56 is: 119,777.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,800.27 : 190,116.36 = 86,817.56 : x
  2. Step 2: Convert to fraction form
    137,800.27/190,116.36 = 86,817.56/x
  3. Step 3: Cross multiply
    137,800.27x = 190,116.36 × 86,817.56
  4. Step 4: Simplify right side
    137,800.27x = 16,505,437,540.70
  5. Step 5: Solve for x
    x = 16,505,437,540.70/137,800.27
  6. Step 6: Final answer
    x = 119,777.98

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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.