Home / 158,382.82-218,467.60-103,938.52

Finding the Fourth Proportional to 158,382.82, 218,467.60 and 103,938.52

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Solution

The fourth proportional to 158,382.82, 218,467.60 and 103,938.52 is: 143,369.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,382.82 : 218,467.60 = 103,938.52 : x
  2. Step 2: Convert to fraction form
    158,382.82/218,467.60 = 103,938.52/x
  3. Step 3: Cross multiply
    158,382.82x = 218,467.60 × 103,938.52
  4. Step 4: Simplify right side
    158,382.82x = 22,707,199,011.95
  5. Step 5: Solve for x
    x = 22,707,199,011.95/158,382.82
  6. Step 6: Final answer
    x = 143,369.08

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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.