Home / 142,839.24-214,072.26-79,656.84

Finding the Fourth Proportional to 142,839.24, 214,072.26 and 79,656.84

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Solution

The fourth proportional to 142,839.24, 214,072.26 and 79,656.84 is: 119,381.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,839.24 : 214,072.26 = 79,656.84 : x
  2. Step 2: Convert to fraction form
    142,839.24/214,072.26 = 79,656.84/x
  3. Step 3: Cross multiply
    142,839.24x = 214,072.26 × 79,656.84
  4. Step 4: Simplify right side
    142,839.24x = 17,052,319,763.26
  5. Step 5: Solve for x
    x = 17,052,319,763.26/142,839.24
  6. Step 6: Final answer
    x = 119,381.20

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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.