Home / 156,630.94-216,145.20-85,009.52

Finding the Fourth Proportional to 156,630.94, 216,145.20 and 85,009.52

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Solution

The fourth proportional to 156,630.94, 216,145.20 and 85,009.52 is: 117,310.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,630.94 : 216,145.20 = 85,009.52 : x
  2. Step 2: Convert to fraction form
    156,630.94/216,145.20 = 85,009.52/x
  3. Step 3: Cross multiply
    156,630.94x = 216,145.20 × 85,009.52
  4. Step 4: Simplify right side
    156,630.94x = 18,374,399,702.30
  5. Step 5: Solve for x
    x = 18,374,399,702.30/156,630.94
  6. Step 6: Final answer
    x = 117,310.15

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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.