Home / 155,422.11-214,463.34-98,039.77

Finding the Fourth Proportional to 155,422.11, 214,463.34 and 98,039.77

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Solution

The fourth proportional to 155,422.11, 214,463.34 and 98,039.77 is: 135,282.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,422.11 : 214,463.34 = 98,039.77 : x
  2. Step 2: Convert to fraction form
    155,422.11/214,463.34 = 98,039.77/x
  3. Step 3: Cross multiply
    155,422.11x = 214,463.34 × 98,039.77
  4. Step 4: Simplify right side
    155,422.11x = 21,025,936,527.03
  5. Step 5: Solve for x
    x = 21,025,936,527.03/155,422.11
  6. Step 6: Final answer
    x = 135,282.79

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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.