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Finding the Fourth Proportional to 172,636.56, 238,147.56 and 112,126.32

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Solution

The fourth proportional to 172,636.56, 238,147.56 and 112,126.32 is: 154,675.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,636.56 : 238,147.56 = 112,126.32 : x
  2. Step 2: Convert to fraction form
    172,636.56/238,147.56 = 112,126.32/x
  3. Step 3: Cross multiply
    172,636.56x = 238,147.56 × 112,126.32
  4. Step 4: Simplify right side
    172,636.56x = 26,702,609,519.78
  5. Step 5: Solve for x
    x = 26,702,609,519.78/172,636.56
  6. Step 6: Final answer
    x = 154,675.29

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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.