Home / 172,811.27-238,424.92-136,397.72

Finding the Fourth Proportional to 172,811.27, 238,424.92 and 136,397.72

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Solution

The fourth proportional to 172,811.27, 238,424.92 and 136,397.72 is: 188,185.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,811.27 : 238,424.92 = 136,397.72 : x
  2. Step 2: Convert to fraction form
    172,811.27/238,424.92 = 136,397.72/x
  3. Step 3: Cross multiply
    172,811.27x = 238,424.92 × 136,397.72
  4. Step 4: Simplify right side
    172,811.27x = 32,520,615,734.25
  5. Step 5: Solve for x
    x = 32,520,615,734.25/172,811.27
  6. Step 6: Final answer
    x = 188,185.73

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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.