Home / 103,948.88-143,486.33-61,507.31

Finding the Fourth Proportional to 103,948.88, 143,486.33 and 61,507.31

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Solution

The fourth proportional to 103,948.88, 143,486.33 and 61,507.31 is: 84,901.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,948.88 : 143,486.33 = 61,507.31 : x
  2. Step 2: Convert to fraction form
    103,948.88/143,486.33 = 61,507.31/x
  3. Step 3: Cross multiply
    103,948.88x = 143,486.33 × 61,507.31
  4. Step 4: Simplify right side
    103,948.88x = 8,825,458,180.07
  5. Step 5: Solve for x
    x = 8,825,458,180.07/103,948.88
  6. Step 6: Final answer
    x = 84,901.91

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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.