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Finding the Fourth Proportional to 108,007.80, 161,817.30 and 92,455.80

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Solution

The fourth proportional to 108,007.80, 161,817.30 and 92,455.80 is: 138,517.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,007.80 : 161,817.30 = 92,455.80 : x
  2. Step 2: Convert to fraction form
    108,007.80/161,817.30 = 92,455.80/x
  3. Step 3: Cross multiply
    108,007.80x = 161,817.30 × 92,455.80
  4. Step 4: Simplify right side
    108,007.80x = 14,960,947,925.34
  5. Step 5: Solve for x
    x = 14,960,947,925.34/108,007.80
  6. Step 6: Final answer
    x = 138,517.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.