Home / 185,780.64-256,376.16-100,896.96

Finding the Fourth Proportional to 185,780.64, 256,376.16 and 100,896.96

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Solution

The fourth proportional to 185,780.64, 256,376.16 and 100,896.96 is: 139,237.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,780.64 : 256,376.16 = 100,896.96 : x
  2. Step 2: Convert to fraction form
    185,780.64/256,376.16 = 100,896.96/x
  3. Step 3: Cross multiply
    185,780.64x = 256,376.16 × 100,896.96
  4. Step 4: Simplify right side
    185,780.64x = 25,867,575,160.47
  5. Step 5: Solve for x
    x = 25,867,575,160.47/185,780.64
  6. Step 6: Final answer
    x = 139,237.19

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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.