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Finding the Fourth Proportional to 173,102.76, 259,577.76 and 78,329.11

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Solution

The fourth proportional to 173,102.76, 259,577.76 and 78,329.11 is: 117,459.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,102.76 : 259,577.76 = 78,329.11 : x
  2. Step 2: Convert to fraction form
    173,102.76/259,577.76 = 78,329.11/x
  3. Step 3: Cross multiply
    173,102.76x = 259,577.76 × 78,329.11
  4. Step 4: Simplify right side
    173,102.76x = 20,332,496,143.19
  5. Step 5: Solve for x
    x = 20,332,496,143.19/173,102.76
  6. Step 6: Final answer
    x = 117,459.11

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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.