Home / 108,117.08-161,949.62-86,942.60

Finding the Fourth Proportional to 108,117.08, 161,949.62 and 86,942.60

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Solution

The fourth proportional to 108,117.08, 161,949.62 and 86,942.60 is: 130,232.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,117.08 : 161,949.62 = 86,942.60 : x
  2. Step 2: Convert to fraction form
    108,117.08/161,949.62 = 86,942.60/x
  3. Step 3: Cross multiply
    108,117.08x = 161,949.62 × 86,942.60
  4. Step 4: Simplify right side
    108,117.08x = 14,080,321,031.81
  5. Step 5: Solve for x
    x = 14,080,321,031.81/108,117.08
  6. Step 6: Final answer
    x = 130,232.16

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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.