Home / 104,863.36-144,585.66-85,672.03

Finding the Fourth Proportional to 104,863.36, 144,585.66 and 85,672.03

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Solution

The fourth proportional to 104,863.36, 144,585.66 and 85,672.03 is: 118,124.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,863.36 : 144,585.66 = 85,672.03 : x
  2. Step 2: Convert to fraction form
    104,863.36/144,585.66 = 85,672.03/x
  3. Step 3: Cross multiply
    104,863.36x = 144,585.66 × 85,672.03
  4. Step 4: Simplify right side
    104,863.36x = 12,386,947,001.09
  5. Step 5: Solve for x
    x = 12,386,947,001.09/104,863.36
  6. Step 6: Final answer
    x = 118,124.64

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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.