Home / 158,878.38-219,271.62-91,810.38

Finding the Fourth Proportional to 158,878.38, 219,271.62 and 91,810.38

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Solution

The fourth proportional to 158,878.38, 219,271.62 and 91,810.38 is: 126,709.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,878.38 : 219,271.62 = 91,810.38 : x
  2. Step 2: Convert to fraction form
    158,878.38/219,271.62 = 91,810.38/x
  3. Step 3: Cross multiply
    158,878.38x = 219,271.62 × 91,810.38
  4. Step 4: Simplify right side
    158,878.38x = 20,131,410,755.42
  5. Step 5: Solve for x
    x = 20,131,410,755.42/158,878.38
  6. Step 6: Final answer
    x = 126,709.57

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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.