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Finding the Fourth Proportional to 175,467.62, 242,146.78 and 100,020.98

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Solution

The fourth proportional to 175,467.62, 242,146.78 and 100,020.98 is: 138,029.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,467.62 : 242,146.78 = 100,020.98 : x
  2. Step 2: Convert to fraction form
    175,467.62/242,146.78 = 100,020.98/x
  3. Step 3: Cross multiply
    175,467.62x = 242,146.78 × 100,020.98
  4. Step 4: Simplify right side
    175,467.62x = 24,219,758,239.44
  5. Step 5: Solve for x
    x = 24,219,758,239.44/175,467.62
  6. Step 6: Final answer
    x = 138,029.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.