Home / 98,109.32-147,165.26-27,988.60

Finding the Fourth Proportional to 98,109.32, 147,165.26 and 27,988.60

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Solution

The fourth proportional to 98,109.32, 147,165.26 and 27,988.60 is: 41,983.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,109.32 : 147,165.26 = 27,988.60 : x
  2. Step 2: Convert to fraction form
    98,109.32/147,165.26 = 27,988.60/x
  3. Step 3: Cross multiply
    98,109.32x = 147,165.26 × 27,988.60
  4. Step 4: Simplify right side
    98,109.32x = 4,118,949,596.04
  5. Step 5: Solve for x
    x = 4,118,949,596.04/98,109.32
  6. Step 6: Final answer
    x = 41,983.27

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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.