Home / 156,972.82-216,621.33-85,352.89

Finding the Fourth Proportional to 156,972.82, 216,621.33 and 85,352.89

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Solution

The fourth proportional to 156,972.82, 216,621.33 and 85,352.89 is: 117,786.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,972.82 : 216,621.33 = 85,352.89 : x
  2. Step 2: Convert to fraction form
    156,972.82/216,621.33 = 85,352.89/x
  3. Step 3: Cross multiply
    156,972.82x = 216,621.33 × 85,352.89
  4. Step 4: Simplify right side
    156,972.82x = 18,489,256,551.14
  5. Step 5: Solve for x
    x = 18,489,256,551.14/156,972.82
  6. Step 6: Final answer
    x = 117,786.36

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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.