Home / 185,702.21-256,269.48-100,817.45

Finding the Fourth Proportional to 185,702.21, 256,269.48 and 100,817.45

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Solution

The fourth proportional to 185,702.21, 256,269.48 and 100,817.45 is: 139,128.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,702.21 : 256,269.48 = 100,817.45 : x
  2. Step 2: Convert to fraction form
    185,702.21/256,269.48 = 100,817.45/x
  3. Step 3: Cross multiply
    185,702.21x = 256,269.48 × 100,817.45
  4. Step 4: Simplify right side
    185,702.21x = 25,836,435,486.43
  5. Step 5: Solve for x
    x = 25,836,435,486.43/185,702.21
  6. Step 6: Final answer
    x = 139,128.31

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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.