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Finding the Fourth Proportional to 121,599.20, 182,107.20 and 98,271.20

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Solution

The fourth proportional to 121,599.20, 182,107.20 and 98,271.20 is: 147,171.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,599.20 : 182,107.20 = 98,271.20 : x
  2. Step 2: Convert to fraction form
    121,599.20/182,107.20 = 98,271.20/x
  3. Step 3: Cross multiply
    121,599.20x = 182,107.20 × 98,271.20
  4. Step 4: Simplify right side
    121,599.20x = 17,895,893,072.64
  5. Step 5: Solve for x
    x = 17,895,893,072.64/121,599.20
  6. Step 6: Final answer
    x = 147,171.14

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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.