Home / 102,103.43-140,804.97-61,261.20

Finding the Fourth Proportional to 102,103.43, 140,804.97 and 61,261.20

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Solution

The fourth proportional to 102,103.43, 140,804.97 and 61,261.20 is: 84,481.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,103.43 : 140,804.97 = 61,261.20 : x
  2. Step 2: Convert to fraction form
    102,103.43/140,804.97 = 61,261.20/x
  3. Step 3: Cross multiply
    102,103.43x = 140,804.97 × 61,261.20
  4. Step 4: Simplify right side
    102,103.43x = 8,625,881,428.16
  5. Step 5: Solve for x
    x = 8,625,881,428.16/102,103.43
  6. Step 6: Final answer
    x = 84,481.80

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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.