Home / 156,968.21-216,610.15-85,348.29

Finding the Fourth Proportional to 156,968.21, 216,610.15 and 85,348.29

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Solution

The fourth proportional to 156,968.21, 216,610.15 and 85,348.29 is: 117,777.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,968.21 : 216,610.15 = 85,348.29 : x
  2. Step 2: Convert to fraction form
    156,968.21/216,610.15 = 85,348.29/x
  3. Step 3: Cross multiply
    156,968.21x = 216,610.15 × 85,348.29
  4. Step 4: Simplify right side
    156,968.21x = 18,487,305,899.14
  5. Step 5: Solve for x
    x = 18,487,305,899.14/156,968.21
  6. Step 6: Final answer
    x = 117,777.39

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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.