Home / 103,936.59-143,509.19-63,705.24

Finding the Fourth Proportional to 103,936.59, 143,509.19 and 63,705.24

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Solution

The fourth proportional to 103,936.59, 143,509.19 and 63,705.24 is: 87,960.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,936.59 : 143,509.19 = 63,705.24 : x
  2. Step 2: Convert to fraction form
    103,936.59/143,509.19 = 63,705.24/x
  3. Step 3: Cross multiply
    103,936.59x = 143,509.19 × 63,705.24
  4. Step 4: Simplify right side
    103,936.59x = 9,142,287,072.63
  5. Step 5: Solve for x
    x = 9,142,287,072.63/103,936.59
  6. Step 6: Final answer
    x = 87,960.24

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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.