Home / 142,939.05-214,235.50-79,692.01

Finding the Fourth Proportional to 142,939.05, 214,235.50 and 79,692.01

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Solution

The fourth proportional to 142,939.05, 214,235.50 and 79,692.01 is: 119,441.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,939.05 : 214,235.50 = 79,692.01 : x
  2. Step 2: Convert to fraction form
    142,939.05/214,235.50 = 79,692.01/x
  3. Step 3: Cross multiply
    142,939.05x = 214,235.50 × 79,692.01
  4. Step 4: Simplify right side
    142,939.05x = 17,072,857,608.36
  5. Step 5: Solve for x
    x = 17,072,857,608.36/142,939.05
  6. Step 6: Final answer
    x = 119,441.52

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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.