Home / 155,479.84-214,578.48-91,823.56

Finding the Fourth Proportional to 155,479.84, 214,578.48 and 91,823.56

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Solution

The fourth proportional to 155,479.84, 214,578.48 and 91,823.56 is: 126,726.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,479.84 : 214,578.48 = 91,823.56 : x
  2. Step 2: Convert to fraction form
    155,479.84/214,578.48 = 91,823.56/x
  3. Step 3: Cross multiply
    155,479.84x = 214,578.48 × 91,823.56
  4. Step 4: Simplify right side
    155,479.84x = 19,703,359,932.99
  5. Step 5: Solve for x
    x = 19,703,359,932.99/155,479.84
  6. Step 6: Final answer
    x = 126,726.14

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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.