Home / 198,518.02-297,609.63-86,113.60

Finding the Fourth Proportional to 198,518.02, 297,609.63 and 86,113.60

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Solution

The fourth proportional to 198,518.02, 297,609.63 and 86,113.60 is: 129,097.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,518.02 : 297,609.63 = 86,113.60 : x
  2. Step 2: Convert to fraction form
    198,518.02/297,609.63 = 86,113.60/x
  3. Step 3: Cross multiply
    198,518.02x = 297,609.63 × 86,113.60
  4. Step 4: Simplify right side
    198,518.02x = 25,628,236,633.97
  5. Step 5: Solve for x
    x = 25,628,236,633.97/198,518.02
  6. Step 6: Final answer
    x = 129,097.78

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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.