Home / 103,830.08-143,273.76-63,553.28

Finding the Fourth Proportional to 103,830.08, 143,273.76 and 63,553.28

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Solution

The fourth proportional to 103,830.08, 143,273.76 and 63,553.28 is: 87,696.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,830.08 : 143,273.76 = 63,553.28 : x
  2. Step 2: Convert to fraction form
    103,830.08/143,273.76 = 63,553.28/x
  3. Step 3: Cross multiply
    103,830.08x = 143,273.76 × 63,553.28
  4. Step 4: Simplify right side
    103,830.08x = 9,105,517,385.93
  5. Step 5: Solve for x
    x = 9,105,517,385.93/103,830.08
  6. Step 6: Final answer
    x = 87,696.33

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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.