Home / 108,195.16-149,367.20-72,446.08

Finding the Fourth Proportional to 108,195.16, 149,367.20 and 72,446.08

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Solution

The fourth proportional to 108,195.16, 149,367.20 and 72,446.08 is: 100,014.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,195.16 : 149,367.20 = 72,446.08 : x
  2. Step 2: Convert to fraction form
    108,195.16/149,367.20 = 72,446.08/x
  3. Step 3: Cross multiply
    108,195.16x = 149,367.20 × 72,446.08
  4. Step 4: Simplify right side
    108,195.16x = 10,821,068,120.58
  5. Step 5: Solve for x
    x = 10,821,068,120.58/108,195.16
  6. Step 6: Final answer
    x = 100,014.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.