Home / 156,629.40-234,944.10-45,821.40

Finding the Fourth Proportional to 156,629.40, 234,944.10 and 45,821.40

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Solution

The fourth proportional to 156,629.40, 234,944.10 and 45,821.40 is: 68,732.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,629.40 : 234,944.10 = 45,821.40 : x
  2. Step 2: Convert to fraction form
    156,629.40/234,944.10 = 45,821.40/x
  3. Step 3: Cross multiply
    156,629.40x = 234,944.10 × 45,821.40
  4. Step 4: Simplify right side
    156,629.40x = 10,765,467,583.74
  5. Step 5: Solve for x
    x = 10,765,467,583.74/156,629.40
  6. Step 6: Final answer
    x = 68,732.10

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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.