Home / 156,876.35-216,489.27-85,256.39

Finding the Fourth Proportional to 156,876.35, 216,489.27 and 85,256.39

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Solution

The fourth proportional to 156,876.35, 216,489.27 and 85,256.39 is: 117,653.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,876.35 : 216,489.27 = 85,256.39 : x
  2. Step 2: Convert to fraction form
    156,876.35/216,489.27 = 85,256.39/x
  3. Step 3: Cross multiply
    156,876.35x = 216,489.27 × 85,256.39
  4. Step 4: Simplify right side
    156,876.35x = 18,457,092,231.78
  5. Step 5: Solve for x
    x = 18,457,092,231.78/156,876.35
  6. Step 6: Final answer
    x = 117,653.76

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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.