Home / 98,762.15-148,116.80-27,680.81

Finding the Fourth Proportional to 98,762.15, 148,116.80 and 27,680.81

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Solution

The fourth proportional to 98,762.15, 148,116.80 and 27,680.81 is: 41,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,762.15 : 148,116.80 = 27,680.81 : x
  2. Step 2: Convert to fraction form
    98,762.15/148,116.80 = 27,680.81/x
  3. Step 3: Cross multiply
    98,762.15x = 148,116.80 × 27,680.81
  4. Step 4: Simplify right side
    98,762.15x = 4,099,992,327.23
  5. Step 5: Solve for x
    x = 4,099,992,327.23/98,762.15
  6. Step 6: Final answer
    x = 41,513.80

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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.