Home / 185,779.12-256,375.92-100,897.60

Finding the Fourth Proportional to 185,779.12, 256,375.92 and 100,897.60

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Solution

The fourth proportional to 185,779.12, 256,375.92 and 100,897.60 is: 139,239.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,779.12 : 256,375.92 = 100,897.60 : x
  2. Step 2: Convert to fraction form
    185,779.12/256,375.92 = 100,897.60/x
  3. Step 3: Cross multiply
    185,779.12x = 256,375.92 × 100,897.60
  4. Step 4: Simplify right side
    185,779.12x = 25,867,715,025.79
  5. Step 5: Solve for x
    x = 25,867,715,025.79/185,779.12
  6. Step 6: Final answer
    x = 139,239.09

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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.