Home / 98,772.48-148,183.02-28,650.78

Finding the Fourth Proportional to 98,772.48, 148,183.02 and 28,650.78

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Solution

The fourth proportional to 98,772.48, 148,183.02 and 28,650.78 is: 42,983.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,772.48 : 148,183.02 = 28,650.78 : x
  2. Step 2: Convert to fraction form
    98,772.48/148,183.02 = 28,650.78/x
  3. Step 3: Cross multiply
    98,772.48x = 148,183.02 × 28,650.78
  4. Step 4: Simplify right side
    98,772.48x = 4,245,559,105.76
  5. Step 5: Solve for x
    x = 4,245,559,105.76/98,772.48
  6. Step 6: Final answer
    x = 42,983.22

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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.