Home / 74,182.14-102,371.38-40,190.86

Finding the Fourth Proportional to 74,182.14, 102,371.38 and 40,190.86

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Solution

The fourth proportional to 74,182.14, 102,371.38 and 40,190.86 is: 55,463.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,182.14 : 102,371.38 = 40,190.86 : x
  2. Step 2: Convert to fraction form
    74,182.14/102,371.38 = 40,190.86/x
  3. Step 3: Cross multiply
    74,182.14x = 102,371.38 × 40,190.86
  4. Step 4: Simplify right side
    74,182.14x = 4,114,393,801.59
  5. Step 5: Solve for x
    x = 4,114,393,801.59/74,182.14
  6. Step 6: Final answer
    x = 55,463.40

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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.