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Finding the Fourth Proportional to 172,783.89, 259,292.61 and 60,465.11

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Solution

The fourth proportional to 172,783.89, 259,292.61 and 60,465.11 is: 90,738.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,783.89 : 259,292.61 = 60,465.11 : x
  2. Step 2: Convert to fraction form
    172,783.89/259,292.61 = 60,465.11/x
  3. Step 3: Cross multiply
    172,783.89x = 259,292.61 × 60,465.11
  4. Step 4: Simplify right side
    172,783.89x = 15,678,154,889.37
  5. Step 5: Solve for x
    x = 15,678,154,889.37/172,783.89
  6. Step 6: Final answer
    x = 90,738.52

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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.