Home / 202,176.02-278,912.70-117,243.86

Finding the Fourth Proportional to 202,176.02, 278,912.70 and 117,243.86

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Solution

The fourth proportional to 202,176.02, 278,912.70 and 117,243.86 is: 161,744.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,176.02 : 278,912.70 = 117,243.86 : x
  2. Step 2: Convert to fraction form
    202,176.02/278,912.70 = 117,243.86/x
  3. Step 3: Cross multiply
    202,176.02x = 278,912.70 × 117,243.86
  4. Step 4: Simplify right side
    202,176.02x = 32,700,801,551.02
  5. Step 5: Solve for x
    x = 32,700,801,551.02/202,176.02
  6. Step 6: Final answer
    x = 161,744.21

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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.