Home / 155,490.88-214,578.94-86,581.31

Finding the Fourth Proportional to 155,490.88, 214,578.94 and 86,581.31

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Solution

The fourth proportional to 155,490.88, 214,578.94 and 86,581.31 is: 119,483.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,490.88 : 214,578.94 = 86,581.31 : x
  2. Step 2: Convert to fraction form
    155,490.88/214,578.94 = 86,581.31/x
  3. Step 3: Cross multiply
    155,490.88x = 214,578.94 × 86,581.31
  4. Step 4: Simplify right side
    155,490.88x = 18,578,525,723.61
  5. Step 5: Solve for x
    x = 18,578,525,723.61/155,490.88
  6. Step 6: Final answer
    x = 119,483.06

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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.