Home / 109,121.63-163,689.35-34,244.72

Finding the Fourth Proportional to 109,121.63, 163,689.35 and 34,244.72

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Solution

The fourth proportional to 109,121.63, 163,689.35 and 34,244.72 is: 51,369.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,121.63 : 163,689.35 = 34,244.72 : x
  2. Step 2: Convert to fraction form
    109,121.63/163,689.35 = 34,244.72/x
  3. Step 3: Cross multiply
    109,121.63x = 163,689.35 × 34,244.72
  4. Step 4: Simplify right side
    109,121.63x = 5,605,494,968.06
  5. Step 5: Solve for x
    x = 5,605,494,968.06/109,121.63
  6. Step 6: Final answer
    x = 51,369.24

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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.