Home / 158,231.88-218,422.98-103,804.74

Finding the Fourth Proportional to 158,231.88, 218,422.98 and 103,804.74

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Solution

The fourth proportional to 158,231.88, 218,422.98 and 103,804.74 is: 143,291.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,231.88 : 218,422.98 = 103,804.74 : x
  2. Step 2: Convert to fraction form
    158,231.88/218,422.98 = 103,804.74/x
  3. Step 3: Cross multiply
    158,231.88x = 218,422.98 × 103,804.74
  4. Step 4: Simplify right side
    158,231.88x = 22,673,340,648.93
  5. Step 5: Solve for x
    x = 22,673,340,648.93/158,231.88
  6. Step 6: Final answer
    x = 143,291.86

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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.