Home / 156,985.21-216,613.30-92,467.30

Finding the Fourth Proportional to 156,985.21, 216,613.30 and 92,467.30

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Solution

The fourth proportional to 156,985.21, 216,613.30 and 92,467.30 is: 127,589.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,985.21 : 216,613.30 = 92,467.30 : x
  2. Step 2: Convert to fraction form
    156,985.21/216,613.30 = 92,467.30/x
  3. Step 3: Cross multiply
    156,985.21x = 216,613.30 × 92,467.30
  4. Step 4: Simplify right side
    156,985.21x = 20,029,646,995.09
  5. Step 5: Solve for x
    x = 20,029,646,995.09/156,985.21
  6. Step 6: Final answer
    x = 127,589.39

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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.