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Finding the Fourth Proportional to 108,914.40, 150,454.80 and 84,083.04

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Solution

The fourth proportional to 108,914.40, 150,454.80 and 84,083.04 is: 116,152.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,914.40 : 150,454.80 = 84,083.04 : x
  2. Step 2: Convert to fraction form
    108,914.40/150,454.80 = 84,083.04/x
  3. Step 3: Cross multiply
    108,914.40x = 150,454.80 × 84,083.04
  4. Step 4: Simplify right side
    108,914.40x = 12,650,696,966.59
  5. Step 5: Solve for x
    x = 12,650,696,966.59/108,914.40
  6. Step 6: Final answer
    x = 116,152.66

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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.