Home / 103,653.14-143,033.49-61,203.50

Finding the Fourth Proportional to 103,653.14, 143,033.49 and 61,203.50

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Solution

The fourth proportional to 103,653.14, 143,033.49 and 61,203.50 is: 84,456.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,653.14 : 143,033.49 = 61,203.50 : x
  2. Step 2: Convert to fraction form
    103,653.14/143,033.49 = 61,203.50/x
  3. Step 3: Cross multiply
    103,653.14x = 143,033.49 × 61,203.50
  4. Step 4: Simplify right side
    103,653.14x = 8,754,150,205.22
  5. Step 5: Solve for x
    x = 8,754,150,205.22/103,653.14
  6. Step 6: Final answer
    x = 84,456.20

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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.