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Finding the Fourth Proportional to 185,779.64, 256,374.78 and 100,895.96

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Solution

The fourth proportional to 185,779.64, 256,374.78 and 100,895.96 is: 139,235.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,779.64 : 256,374.78 = 100,895.96 : x
  2. Step 2: Convert to fraction form
    185,779.64/256,374.78 = 100,895.96/x
  3. Step 3: Cross multiply
    185,779.64x = 256,374.78 × 100,895.96
  4. Step 4: Simplify right side
    185,779.64x = 25,867,179,547.89
  5. Step 5: Solve for x
    x = 25,867,179,547.89/185,779.64
  6. Step 6: Final answer
    x = 139,235.81

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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.