Home / 198,519.02-297,611.13-86,114.60

Finding the Fourth Proportional to 198,519.02, 297,611.13 and 86,114.60

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Solution

The fourth proportional to 198,519.02, 297,611.13 and 86,114.60 is: 129,099.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,519.02 : 297,611.13 = 86,114.60 : x
  2. Step 2: Convert to fraction form
    198,519.02/297,611.13 = 86,114.60/x
  3. Step 3: Cross multiply
    198,519.02x = 297,611.13 × 86,114.60
  4. Step 4: Simplify right side
    198,519.02x = 25,628,663,415.50
  5. Step 5: Solve for x
    x = 25,628,663,415.50/198,519.02
  6. Step 6: Final answer
    x = 129,099.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.