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Finding the Fourth Proportional to 108,735.76, 149,825.28 and 101,255.68

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Solution

The fourth proportional to 108,735.76, 149,825.28 and 101,255.68 is: 139,518.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,735.76 : 149,825.28 = 101,255.68 : x
  2. Step 2: Convert to fraction form
    108,735.76/149,825.28 = 101,255.68/x
  3. Step 3: Cross multiply
    108,735.76x = 149,825.28 × 101,255.68
  4. Step 4: Simplify right side
    108,735.76x = 15,170,660,607.59
  5. Step 5: Solve for x
    x = 15,170,660,607.59/108,735.76
  6. Step 6: Final answer
    x = 139,518.60

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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.