Home / 105,415.20-158,133.84-34,343.37

Finding the Fourth Proportional to 105,415.20, 158,133.84 and 34,343.37

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Solution

The fourth proportional to 105,415.20, 158,133.84 and 34,343.37 is: 51,518.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,415.20 : 158,133.84 = 34,343.37 : x
  2. Step 2: Convert to fraction form
    105,415.20/158,133.84 = 34,343.37/x
  3. Step 3: Cross multiply
    105,415.20x = 158,133.84 × 34,343.37
  4. Step 4: Simplify right side
    105,415.20x = 5,430,848,976.64
  5. Step 5: Solve for x
    x = 5,430,848,976.64/105,415.20
  6. Step 6: Final answer
    x = 51,518.65

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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.