Home / 156,921.10-235,381.65-96,997.30

Finding the Fourth Proportional to 156,921.10, 235,381.65 and 96,997.30

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Solution

The fourth proportional to 156,921.10, 235,381.65 and 96,997.30 is: 145,495.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,921.10 : 235,381.65 = 96,997.30 : x
  2. Step 2: Convert to fraction form
    156,921.10/235,381.65 = 96,997.30/x
  3. Step 3: Cross multiply
    156,921.10x = 235,381.65 × 96,997.30
  4. Step 4: Simplify right side
    156,921.10x = 22,831,384,519.55
  5. Step 5: Solve for x
    x = 22,831,384,519.55/156,921.10
  6. Step 6: Final answer
    x = 145,495.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.