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Finding the Fourth Proportional to 108,093.32, 149,182.26 and 65,640.68

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Solution

The fourth proportional to 108,093.32, 149,182.26 and 65,640.68 is: 90,592.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,093.32 : 149,182.26 = 65,640.68 : x
  2. Step 2: Convert to fraction form
    108,093.32/149,182.26 = 65,640.68/x
  3. Step 3: Cross multiply
    108,093.32x = 149,182.26 × 65,640.68
  4. Step 4: Simplify right side
    108,093.32x = 9,792,424,990.34
  5. Step 5: Solve for x
    x = 9,792,424,990.34/108,093.32
  6. Step 6: Final answer
    x = 90,592.32

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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.