Home / 104,688.10-156,983.55-45,493.30

Finding the Fourth Proportional to 104,688.10, 156,983.55 and 45,493.30

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Solution

The fourth proportional to 104,688.10, 156,983.55 and 45,493.30 is: 68,218.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,688.10 : 156,983.55 = 45,493.30 : x
  2. Step 2: Convert to fraction form
    104,688.10/156,983.55 = 45,493.30/x
  3. Step 3: Cross multiply
    104,688.10x = 156,983.55 × 45,493.30
  4. Step 4: Simplify right side
    104,688.10x = 7,141,699,735.22
  5. Step 5: Solve for x
    x = 7,141,699,735.22/104,688.10
  6. Step 6: Final answer
    x = 68,218.83

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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.