Home / 200,581.02-276,832.30-128,015.22

Finding the Fourth Proportional to 200,581.02, 276,832.30 and 128,015.22

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Solution

The fourth proportional to 200,581.02, 276,832.30 and 128,015.22 is: 176,680.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,581.02 : 276,832.30 = 128,015.22 : x
  2. Step 2: Convert to fraction form
    200,581.02/276,832.30 = 128,015.22/x
  3. Step 3: Cross multiply
    200,581.02x = 276,832.30 × 128,015.22
  4. Step 4: Simplify right side
    200,581.02x = 35,438,747,787.61
  5. Step 5: Solve for x
    x = 35,438,747,787.61/200,581.02
  6. Step 6: Final answer
    x = 176,680.46

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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.