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Finding the Fourth Proportional to 146,536.78, 202,220.87 and 79,468.78

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Solution

The fourth proportional to 146,536.78, 202,220.87 and 79,468.78 is: 109,666.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,536.78 : 202,220.87 = 79,468.78 : x
  2. Step 2: Convert to fraction form
    146,536.78/202,220.87 = 79,468.78/x
  3. Step 3: Cross multiply
    146,536.78x = 202,220.87 × 79,468.78
  4. Step 4: Simplify right side
    146,536.78x = 16,070,245,829.44
  5. Step 5: Solve for x
    x = 16,070,245,829.44/146,536.78
  6. Step 6: Final answer
    x = 109,666.98

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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.