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Finding the Fourth Proportional to 101,168.36, 151,737.66 and 40,378.28

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Solution

The fourth proportional to 101,168.36, 151,737.66 and 40,378.28 is: 60,561.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,168.36 : 151,737.66 = 40,378.28 : x
  2. Step 2: Convert to fraction form
    101,168.36/151,737.66 = 40,378.28/x
  3. Step 3: Cross multiply
    101,168.36x = 151,737.66 × 40,378.28
  4. Step 4: Simplify right side
    101,168.36x = 6,126,905,722.02
  5. Step 5: Solve for x
    x = 6,126,905,722.02/101,168.36
  6. Step 6: Final answer
    x = 60,561.48

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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.