Home / 155,136.46-214,101.21-91,486.66

Finding the Fourth Proportional to 155,136.46, 214,101.21 and 91,486.66

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Solution

The fourth proportional to 155,136.46, 214,101.21 and 91,486.66 is: 126,259.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,136.46 : 214,101.21 = 91,486.66 : x
  2. Step 2: Convert to fraction form
    155,136.46/214,101.21 = 91,486.66/x
  3. Step 3: Cross multiply
    155,136.46x = 214,101.21 × 91,486.66
  4. Step 4: Simplify right side
    155,136.46x = 19,587,404,604.86
  5. Step 5: Solve for x
    x = 19,587,404,604.86/155,136.46
  6. Step 6: Final answer
    x = 126,259.20

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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.