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Finding the Fourth Proportional to 104,862.36, 144,584.28 and 85,671.03

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Solution

The fourth proportional to 104,862.36, 144,584.28 and 85,671.03 is: 118,123.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,862.36 : 144,584.28 = 85,671.03 : x
  2. Step 2: Convert to fraction form
    104,862.36/144,584.28 = 85,671.03/x
  3. Step 3: Cross multiply
    104,862.36x = 144,584.28 × 85,671.03
  4. Step 4: Simplify right side
    104,862.36x = 12,386,684,189.41
  5. Step 5: Solve for x
    x = 12,386,684,189.41/104,862.36
  6. Step 6: Final answer
    x = 118,123.26

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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.