Home / 142,223.56-196,266.46-77,692.02

Finding the Fourth Proportional to 142,223.56, 196,266.46 and 77,692.02

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Solution

The fourth proportional to 142,223.56, 196,266.46 and 77,692.02 is: 107,213.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,223.56 : 196,266.46 = 77,692.02 : x
  2. Step 2: Convert to fraction form
    142,223.56/196,266.46 = 77,692.02/x
  3. Step 3: Cross multiply
    142,223.56x = 196,266.46 × 77,692.02
  4. Step 4: Simplify right side
    142,223.56x = 15,248,337,735.65
  5. Step 5: Solve for x
    x = 15,248,337,735.65/142,223.56
  6. Step 6: Final answer
    x = 107,213.87

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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.