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Finding the Fourth Proportional to 120,737.40, 181,130.40 and 101,151.60

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Solution

The fourth proportional to 120,737.40, 181,130.40 and 101,151.60 is: 151,747.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,737.40 : 181,130.40 = 101,151.60 : x
  2. Step 2: Convert to fraction form
    120,737.40/181,130.40 = 101,151.60/x
  3. Step 3: Cross multiply
    120,737.40x = 181,130.40 × 101,151.60
  4. Step 4: Simplify right side
    120,737.40x = 18,321,629,768.64
  5. Step 5: Solve for x
    x = 18,321,629,768.64/120,737.40
  6. Step 6: Final answer
    x = 151,747.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.