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Finding the Fourth Proportional to 101,171.94, 139,611.30 and 55,848.80

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Solution

The fourth proportional to 101,171.94, 139,611.30 and 55,848.80 is: 77,068.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,171.94 : 139,611.30 = 55,848.80 : x
  2. Step 2: Convert to fraction form
    101,171.94/139,611.30 = 55,848.80/x
  3. Step 3: Cross multiply
    101,171.94x = 139,611.30 × 55,848.80
  4. Step 4: Simplify right side
    101,171.94x = 7,797,123,571.44
  5. Step 5: Solve for x
    x = 7,797,123,571.44/101,171.94
  6. Step 6: Final answer
    x = 77,068.04

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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.