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Finding the Fourth Proportional to 173,718, 260,460.36 and 80,172.72

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Solution

The fourth proportional to 173,718, 260,460.36 and 80,172.72 is: 120,205.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,718 : 260,460.36 = 80,172.72 : x
  2. Step 2: Convert to fraction form
    173,718/260,460.36 = 80,172.72/x
  3. Step 3: Cross multiply
    173,718x = 260,460.36 × 80,172.72
  4. Step 4: Simplify right side
    173,718x = 20,881,815,513.38
  5. Step 5: Solve for x
    x = 20,881,815,513.38/173,718
  6. Step 6: Final answer
    x = 120,205.25

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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.