Home / 124,821.20-187,404.60-98,555.60

Finding the Fourth Proportional to 124,821.20, 187,404.60 and 98,555.60

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Solution

The fourth proportional to 124,821.20, 187,404.60 and 98,555.60 is: 147,969.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,821.20 : 187,404.60 = 98,555.60 : x
  2. Step 2: Convert to fraction form
    124,821.20/187,404.60 = 98,555.60/x
  3. Step 3: Cross multiply
    124,821.20x = 187,404.60 × 98,555.60
  4. Step 4: Simplify right side
    124,821.20x = 18,469,772,795.76
  5. Step 5: Solve for x
    x = 18,469,772,795.76/124,821.20
  6. Step 6: Final answer
    x = 147,969.84

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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.