Home / 198,515.52-297,605.88-86,111.10

Finding the Fourth Proportional to 198,515.52, 297,605.88 and 86,111.10

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Solution

The fourth proportional to 198,515.52, 297,605.88 and 86,111.10 is: 129,094.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,515.52 : 297,605.88 = 86,111.10 : x
  2. Step 2: Convert to fraction form
    198,515.52/297,605.88 = 86,111.10/x
  3. Step 3: Cross multiply
    198,515.52x = 297,605.88 × 86,111.10
  4. Step 4: Simplify right side
    198,515.52x = 25,627,169,693.27
  5. Step 5: Solve for x
    x = 25,627,169,693.27/198,515.52
  6. Step 6: Final answer
    x = 129,094.04

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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.