Home / 185,881.32-256,512.96-100,998.72

Finding the Fourth Proportional to 185,881.32, 256,512.96 and 100,998.72

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Solution

The fourth proportional to 185,881.32, 256,512.96 and 100,998.72 is: 139,376.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,881.32 : 256,512.96 = 100,998.72 : x
  2. Step 2: Convert to fraction form
    185,881.32/256,512.96 = 100,998.72/x
  3. Step 3: Cross multiply
    185,881.32x = 256,512.96 × 100,998.72
  4. Step 4: Simplify right side
    185,881.32x = 25,907,480,623.41
  5. Step 5: Solve for x
    x = 25,907,480,623.41/185,881.32
  6. Step 6: Final answer
    x = 139,376.46

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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.