Home / 156,836.82-216,434.37-85,217.10

Finding the Fourth Proportional to 156,836.82, 216,434.37 and 85,217.10

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Solution

The fourth proportional to 156,836.82, 216,434.37 and 85,217.10 is: 117,599.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,836.82 : 216,434.37 = 85,217.10 : x
  2. Step 2: Convert to fraction form
    156,836.82/216,434.37 = 85,217.10/x
  3. Step 3: Cross multiply
    156,836.82x = 216,434.37 × 85,217.10
  4. Step 4: Simplify right side
    156,836.82x = 18,443,909,351.73
  5. Step 5: Solve for x
    x = 18,443,909,351.73/156,836.82
  6. Step 6: Final answer
    x = 117,599.36

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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.