Home / 195,180.79-269,349.98-109,142.90

Finding the Fourth Proportional to 195,180.79, 269,349.98 and 109,142.90

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Solution

The fourth proportional to 195,180.79, 269,349.98 and 109,142.90 is: 150,617.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,180.79 : 269,349.98 = 109,142.90 : x
  2. Step 2: Convert to fraction form
    195,180.79/269,349.98 = 109,142.90/x
  3. Step 3: Cross multiply
    195,180.79x = 269,349.98 × 109,142.90
  4. Step 4: Simplify right side
    195,180.79x = 29,397,636,585.39
  5. Step 5: Solve for x
    x = 29,397,636,585.39/195,180.79
  6. Step 6: Final answer
    x = 150,617.47

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1.5x scale

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.