Home / 185,529.75-256,031.19-100,647.15

Finding the Fourth Proportional to 185,529.75, 256,031.19 and 100,647.15

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Solution

The fourth proportional to 185,529.75, 256,031.19 and 100,647.15 is: 138,893.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,529.75 : 256,031.19 = 100,647.15 : x
  2. Step 2: Convert to fraction form
    185,529.75/256,031.19 = 100,647.15/x
  3. Step 3: Cross multiply
    185,529.75x = 256,031.19 × 100,647.15
  4. Step 4: Simplify right side
    185,529.75x = 25,768,809,584.61
  5. Step 5: Solve for x
    x = 25,768,809,584.61/185,529.75
  6. Step 6: Final answer
    x = 138,893.14

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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.