Home / 104,650.12-156,971.70-45,485.86

Finding the Fourth Proportional to 104,650.12, 156,971.70 and 45,485.86

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Solution

The fourth proportional to 104,650.12, 156,971.70 and 45,485.86 is: 68,227.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,650.12 : 156,971.70 = 45,485.86 : x
  2. Step 2: Convert to fraction form
    104,650.12/156,971.70 = 45,485.86/x
  3. Step 3: Cross multiply
    104,650.12x = 156,971.70 × 45,485.86
  4. Step 4: Simplify right side
    104,650.12x = 7,139,992,770.16
  5. Step 5: Solve for x
    x = 7,139,992,770.16/104,650.12
  6. Step 6: Final answer
    x = 68,227.28

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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.