Home / 156,819.98-216,410.40-85,200.59

Finding the Fourth Proportional to 156,819.98, 216,410.40 and 85,200.59

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Solution

The fourth proportional to 156,819.98, 216,410.40 and 85,200.59 is: 117,576.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,819.98 : 216,410.40 = 85,200.59 : x
  2. Step 2: Convert to fraction form
    156,819.98/216,410.40 = 85,200.59/x
  3. Step 3: Cross multiply
    156,819.98x = 216,410.40 × 85,200.59
  4. Step 4: Simplify right side
    156,819.98x = 18,438,292,680.08
  5. Step 5: Solve for x
    x = 18,438,292,680.08/156,819.98
  6. Step 6: Final answer
    x = 117,576.17

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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.