Home / 98,105.16-135,364.16-57,804.21

Finding the Fourth Proportional to 98,105.16, 135,364.16 and 57,804.21

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Solution

The fourth proportional to 98,105.16, 135,364.16 and 57,804.21 is: 79,757.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,105.16 : 135,364.16 = 57,804.21 : x
  2. Step 2: Convert to fraction form
    98,105.16/135,364.16 = 57,804.21/x
  3. Step 3: Cross multiply
    98,105.16x = 135,364.16 × 57,804.21
  4. Step 4: Simplify right side
    98,105.16x = 7,824,618,042.09
  5. Step 5: Solve for x
    x = 7,824,618,042.09/98,105.16
  6. Step 6: Final answer
    x = 79,757.46

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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.