Home / 185,885.04-256,514.40-100,999.20

Finding the Fourth Proportional to 185,885.04, 256,514.40 and 100,999.20

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Solution

The fourth proportional to 185,885.04, 256,514.40 and 100,999.20 is: 139,375.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,885.04 : 256,514.40 = 100,999.20 : x
  2. Step 2: Convert to fraction form
    185,885.04/256,514.40 = 100,999.20/x
  3. Step 3: Cross multiply
    185,885.04x = 256,514.40 × 100,999.20
  4. Step 4: Simplify right side
    185,885.04x = 25,907,749,188.48
  5. Step 5: Solve for x
    x = 25,907,749,188.48/185,885.04
  6. Step 6: Final answer
    x = 139,375.12

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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.