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Finding the Fourth Proportional to 110,077.30, 151,982.49 and 81,403.30

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Solution

The fourth proportional to 110,077.30, 151,982.49 and 81,403.30 is: 112,392.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,077.30 : 151,982.49 = 81,403.30 : x
  2. Step 2: Convert to fraction form
    110,077.30/151,982.49 = 81,403.30/x
  3. Step 3: Cross multiply
    110,077.30x = 151,982.49 × 81,403.30
  4. Step 4: Simplify right side
    110,077.30x = 12,371,876,228.22
  5. Step 5: Solve for x
    x = 12,371,876,228.22/110,077.30
  6. Step 6: Final answer
    x = 112,392.62

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1.5x scale

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.