Home / 108,153.56-162,004.14-86,979.26

Finding the Fourth Proportional to 108,153.56, 162,004.14 and 86,979.26

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Solution

The fourth proportional to 108,153.56, 162,004.14 and 86,979.26 is: 130,286.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,153.56 : 162,004.14 = 86,979.26 : x
  2. Step 2: Convert to fraction form
    108,153.56/162,004.14 = 86,979.26/x
  3. Step 3: Cross multiply
    108,153.56x = 162,004.14 × 86,979.26
  4. Step 4: Simplify right side
    108,153.56x = 14,091,000,214.14
  5. Step 5: Solve for x
    x = 14,091,000,214.14/108,153.56
  6. Step 6: Final answer
    x = 130,286.98

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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.