Home / 85,370.94-117,702.38-70,000.86

Finding the Fourth Proportional to 85,370.94, 117,702.38 and 70,000.86

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Solution

The fourth proportional to 85,370.94, 117,702.38 and 70,000.86 is: 96,511.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,370.94 : 117,702.38 = 70,000.86 : x
  2. Step 2: Convert to fraction form
    85,370.94/117,702.38 = 70,000.86/x
  3. Step 3: Cross multiply
    85,370.94x = 117,702.38 × 70,000.86
  4. Step 4: Simplify right side
    85,370.94x = 8,239,267,179.79
  5. Step 5: Solve for x
    x = 8,239,267,179.79/85,370.94
  6. Step 6: Final answer
    x = 96,511.38

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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.