Home / 129,734.40-194,601.60-109,689.60

Finding the Fourth Proportional to 129,734.40, 194,601.60 and 109,689.60

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Solution

The fourth proportional to 129,734.40, 194,601.60 and 109,689.60 is: 164,534.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,734.40 : 194,601.60 = 109,689.60 : x
  2. Step 2: Convert to fraction form
    129,734.40/194,601.60 = 109,689.60/x
  3. Step 3: Cross multiply
    129,734.40x = 194,601.60 × 109,689.60
  4. Step 4: Simplify right side
    129,734.40x = 21,345,771,663.36
  5. Step 5: Solve for x
    x = 21,345,771,663.36/129,734.40
  6. Step 6: Final answer
    x = 164,534.40

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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.