Home / 156,819.85-216,410.25-85,200.46

Finding the Fourth Proportional to 156,819.85, 216,410.25 and 85,200.46

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Solution

The fourth proportional to 156,819.85, 216,410.25 and 85,200.46 is: 117,576.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,819.85 : 216,410.25 = 85,200.46 : x
  2. Step 2: Convert to fraction form
    156,819.85/216,410.25 = 85,200.46/x
  3. Step 3: Cross multiply
    156,819.85x = 216,410.25 × 85,200.46
  4. Step 4: Simplify right side
    156,819.85x = 18,438,252,848.72
  5. Step 5: Solve for x
    x = 18,438,252,848.72/156,819.85
  6. Step 6: Final answer
    x = 117,576.01

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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.