Home / 142,173.90-213,201.63-57,876.89

Finding the Fourth Proportional to 142,173.90, 213,201.63 and 57,876.89

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Solution

The fourth proportional to 142,173.90, 213,201.63 and 57,876.89 is: 86,791.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,173.90 : 213,201.63 = 57,876.89 : x
  2. Step 2: Convert to fraction form
    142,173.90/213,201.63 = 57,876.89/x
  3. Step 3: Cross multiply
    142,173.90x = 213,201.63 × 57,876.89
  4. Step 4: Simplify right side
    142,173.90x = 12,339,446,221.32
  5. Step 5: Solve for x
    x = 12,339,446,221.32/142,173.90
  6. Step 6: Final answer
    x = 86,791.22

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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.