Home / 142,072.88-213,043.71-53,262.86

Finding the Fourth Proportional to 142,072.88, 213,043.71 and 53,262.86

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Solution

The fourth proportional to 142,072.88, 213,043.71 and 53,262.86 is: 79,869.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,072.88 : 213,043.71 = 53,262.86 : x
  2. Step 2: Convert to fraction form
    142,072.88/213,043.71 = 53,262.86/x
  3. Step 3: Cross multiply
    142,072.88x = 213,043.71 × 53,262.86
  4. Step 4: Simplify right side
    142,072.88x = 11,347,317,299.61
  5. Step 5: Solve for x
    x = 11,347,317,299.61/142,072.88
  6. Step 6: Final answer
    x = 79,869.69

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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.