Home / 200,533.78-276,862.45-129,038.05

Finding the Fourth Proportional to 200,533.78, 276,862.45 and 129,038.05

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Solution

The fourth proportional to 200,533.78, 276,862.45 and 129,038.05 is: 178,153.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,533.78 : 276,862.45 = 129,038.05 : x
  2. Step 2: Convert to fraction form
    200,533.78/276,862.45 = 129,038.05/x
  3. Step 3: Cross multiply
    200,533.78x = 276,862.45 × 129,038.05
  4. Step 4: Simplify right side
    200,533.78x = 35,725,790,666.22
  5. Step 5: Solve for x
    x = 35,725,790,666.22/200,533.78
  6. Step 6: Final answer
    x = 178,153.48

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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.