Home / 108,619.80-162,929.70-73,368.60

Finding the Fourth Proportional to 108,619.80, 162,929.70 and 73,368.60

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Solution

The fourth proportional to 108,619.80, 162,929.70 and 73,368.60 is: 110,052.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,619.80 : 162,929.70 = 73,368.60 : x
  2. Step 2: Convert to fraction form
    108,619.80/162,929.70 = 73,368.60/x
  3. Step 3: Cross multiply
    108,619.80x = 162,929.70 × 73,368.60
  4. Step 4: Simplify right side
    108,619.80x = 11,953,923,987.42
  5. Step 5: Solve for x
    x = 11,953,923,987.42/108,619.80
  6. Step 6: Final answer
    x = 110,052.90

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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.