Home / 200,065.88-276,087.02-109,421.55

Finding the Fourth Proportional to 200,065.88, 276,087.02 and 109,421.55

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Solution

The fourth proportional to 200,065.88, 276,087.02 and 109,421.55 is: 150,999.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,065.88 : 276,087.02 = 109,421.55 : x
  2. Step 2: Convert to fraction form
    200,065.88/276,087.02 = 109,421.55/x
  3. Step 3: Cross multiply
    200,065.88x = 276,087.02 × 109,421.55
  4. Step 4: Simplify right side
    200,065.88x = 30,209,869,116.17
  5. Step 5: Solve for x
    x = 30,209,869,116.17/200,065.88
  6. Step 6: Final answer
    x = 150,999.60

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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.