Home / 156,880.09-216,496.20-85,260.11

Finding the Fourth Proportional to 156,880.09, 216,496.20 and 85,260.11

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Solution

The fourth proportional to 156,880.09, 216,496.20 and 85,260.11 is: 117,659.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,880.09 : 216,496.20 = 85,260.11 : x
  2. Step 2: Convert to fraction form
    156,880.09/216,496.20 = 85,260.11/x
  3. Step 3: Cross multiply
    156,880.09x = 216,496.20 × 85,260.11
  4. Step 4: Simplify right side
    156,880.09x = 18,458,489,826.58
  5. Step 5: Solve for x
    x = 18,458,489,826.58/156,880.09
  6. Step 6: Final answer
    x = 117,659.86

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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.