Home / 195,811.49-270,199.55-115,234.21

Finding the Fourth Proportional to 195,811.49, 270,199.55 and 115,234.21

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Solution

The fourth proportional to 195,811.49, 270,199.55 and 115,234.21 is: 159,011.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,811.49 : 270,199.55 = 115,234.21 : x
  2. Step 2: Convert to fraction form
    195,811.49/270,199.55 = 115,234.21/x
  3. Step 3: Cross multiply
    195,811.49x = 270,199.55 × 115,234.21
  4. Step 4: Simplify right side
    195,811.49x = 31,136,231,686.61
  5. Step 5: Solve for x
    x = 31,136,231,686.61/195,811.49
  6. Step 6: Final answer
    x = 159,011.26

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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.