Home / 204,406.95-306,622.72-86,087.51

Finding the Fourth Proportional to 204,406.95, 306,622.72 and 86,087.51

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Solution

The fourth proportional to 204,406.95, 306,622.72 and 86,087.51 is: 129,136.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,406.95 : 306,622.72 = 86,087.51 : x
  2. Step 2: Convert to fraction form
    204,406.95/306,622.72 = 86,087.51/x
  3. Step 3: Cross multiply
    204,406.95x = 306,622.72 × 86,087.51
  4. Step 4: Simplify right side
    204,406.95x = 26,396,385,492.45
  5. Step 5: Solve for x
    x = 26,396,385,492.45/204,406.95
  6. Step 6: Final answer
    x = 129,136.44

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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.