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Finding the Fourth Proportional to 172,729.76, 259,094.64 and 67,474.92

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Solution

The fourth proportional to 172,729.76, 259,094.64 and 67,474.92 is: 101,212.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,729.76 : 259,094.64 = 67,474.92 : x
  2. Step 2: Convert to fraction form
    172,729.76/259,094.64 = 67,474.92/x
  3. Step 3: Cross multiply
    172,729.76x = 259,094.64 × 67,474.92
  4. Step 4: Simplify right side
    172,729.76x = 17,482,390,106.43
  5. Step 5: Solve for x
    x = 17,482,390,106.43/172,729.76
  6. Step 6: Final answer
    x = 101,212.38

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1.5x scale

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.