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Finding the Fourth Proportional to 101,096.60, 139,515.09 and 55,777.10

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Solution

The fourth proportional to 101,096.60, 139,515.09 and 55,777.10 is: 76,973.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,096.60 : 139,515.09 = 55,777.10 : x
  2. Step 2: Convert to fraction form
    101,096.60/139,515.09 = 55,777.10/x
  3. Step 3: Cross multiply
    101,096.60x = 139,515.09 × 55,777.10
  4. Step 4: Simplify right side
    101,096.60x = 7,781,747,126.44
  5. Step 5: Solve for x
    x = 7,781,747,126.44/101,096.60
  6. Step 6: Final answer
    x = 76,973.38

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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.