Home / 158,218.88-218,405.04-103,791.80

Finding the Fourth Proportional to 158,218.88, 218,405.04 and 103,791.80

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Solution

The fourth proportional to 158,218.88, 218,405.04 and 103,791.80 is: 143,274.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,218.88 : 218,405.04 = 103,791.80 : x
  2. Step 2: Convert to fraction form
    158,218.88/218,405.04 = 103,791.80/x
  3. Step 3: Cross multiply
    158,218.88x = 218,405.04 × 103,791.80
  4. Step 4: Simplify right side
    158,218.88x = 22,668,652,230.67
  5. Step 5: Solve for x
    x = 22,668,652,230.67/158,218.88
  6. Step 6: Final answer
    x = 143,274.00

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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.