Home / 142,622.74-213,958.41-71,579.26

Finding the Fourth Proportional to 142,622.74, 213,958.41 and 71,579.26

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Solution

The fourth proportional to 142,622.74, 213,958.41 and 71,579.26 is: 107,381.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,622.74 : 213,958.41 = 71,579.26 : x
  2. Step 2: Convert to fraction form
    142,622.74/213,958.41 = 71,579.26/x
  3. Step 3: Cross multiply
    142,622.74x = 213,958.41 × 71,579.26
  4. Step 4: Simplify right side
    142,622.74x = 15,314,984,658.58
  5. Step 5: Solve for x
    x = 15,314,984,658.58/142,622.74
  6. Step 6: Final answer
    x = 107,381.09

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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.