Home / 202,040.37-278,753.90-117,140.49

Finding the Fourth Proportional to 202,040.37, 278,753.90 and 117,140.49

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Solution

The fourth proportional to 202,040.37, 278,753.90 and 117,140.49 is: 161,618.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,040.37 : 278,753.90 = 117,140.49 : x
  2. Step 2: Convert to fraction form
    202,040.37/278,753.90 = 117,140.49/x
  3. Step 3: Cross multiply
    202,040.37x = 278,753.90 × 117,140.49
  4. Step 4: Simplify right side
    202,040.37x = 32,653,367,849.71
  5. Step 5: Solve for x
    x = 32,653,367,849.71/202,040.37
  6. Step 6: Final answer
    x = 161,618.04

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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.