Home / 185,530.28-256,031.66-100,647.36

Finding the Fourth Proportional to 185,530.28, 256,031.66 and 100,647.36

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Solution

The fourth proportional to 185,530.28, 256,031.66 and 100,647.36 is: 138,893.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,530.28 : 256,031.66 = 100,647.36 : x
  2. Step 2: Convert to fraction form
    185,530.28/256,031.66 = 100,647.36/x
  3. Step 3: Cross multiply
    185,530.28x = 256,031.66 × 100,647.36
  4. Step 4: Simplify right side
    185,530.28x = 25,768,910,655.42
  5. Step 5: Solve for x
    x = 25,768,910,655.42/185,530.28
  6. Step 6: Final answer
    x = 138,893.29

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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.