Home / 200,172.48-276,233.76-109,528.08

Finding the Fourth Proportional to 200,172.48, 276,233.76 and 109,528.08

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Solution

The fourth proportional to 200,172.48, 276,233.76 and 109,528.08 is: 151,146.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,172.48 : 276,233.76 = 109,528.08 : x
  2. Step 2: Convert to fraction form
    200,172.48/276,233.76 = 109,528.08/x
  3. Step 3: Cross multiply
    200,172.48x = 276,233.76 × 109,528.08
  4. Step 4: Simplify right side
    200,172.48x = 30,255,353,363.98
  5. Step 5: Solve for x
    x = 30,255,353,363.98/200,172.48
  6. Step 6: Final answer
    x = 151,146.42

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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.