Home / 98,712.70-148,032.60-48,776.20

Finding the Fourth Proportional to 98,712.70, 148,032.60 and 48,776.20

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Solution

The fourth proportional to 98,712.70, 148,032.60 and 48,776.20 is: 73,146.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,712.70 : 148,032.60 = 48,776.20 : x
  2. Step 2: Convert to fraction form
    98,712.70/148,032.60 = 48,776.20/x
  3. Step 3: Cross multiply
    98,712.70x = 148,032.60 × 48,776.20
  4. Step 4: Simplify right side
    98,712.70x = 7,220,467,704.12
  5. Step 5: Solve for x
    x = 7,220,467,704.12/98,712.70
  6. Step 6: Final answer
    x = 73,146.29

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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.