Home / 185,530.28-256,031.67-100,647.35

Finding the Fourth Proportional to 185,530.28, 256,031.67 and 100,647.35

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Solution

The fourth proportional to 185,530.28, 256,031.67 and 100,647.35 is: 138,893.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,530.28 : 256,031.67 = 100,647.35 : x
  2. Step 2: Convert to fraction form
    185,530.28/256,031.67 = 100,647.35/x
  3. Step 3: Cross multiply
    185,530.28x = 256,031.67 × 100,647.35
  4. Step 4: Simplify right side
    185,530.28x = 25,768,909,101.57
  5. Step 5: Solve for x
    x = 25,768,909,101.57/185,530.28
  6. Step 6: Final answer
    x = 138,893.28

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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.