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Finding the Fourth Proportional to 185,671.63, 256,226.61 and 100,788.67

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Solution

The fourth proportional to 185,671.63, 256,226.61 and 100,788.67 is: 139,088.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,671.63 : 256,226.61 = 100,788.67 : x
  2. Step 2: Convert to fraction form
    185,671.63/256,226.61 = 100,788.67/x
  3. Step 3: Cross multiply
    185,671.63x = 256,226.61 × 100,788.67
  4. Step 4: Simplify right side
    185,671.63x = 25,824,739,240.51
  5. Step 5: Solve for x
    x = 25,824,739,240.51/185,671.63
  6. Step 6: Final answer
    x = 139,088.23

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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.