Home / 103,066.75-142,237.96-57,759.34

Finding the Fourth Proportional to 103,066.75, 142,237.96 and 57,759.34

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Solution

The fourth proportional to 103,066.75, 142,237.96 and 57,759.34 is: 79,711.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,066.75 : 142,237.96 = 57,759.34 : x
  2. Step 2: Convert to fraction form
    103,066.75/142,237.96 = 57,759.34/x
  3. Step 3: Cross multiply
    103,066.75x = 142,237.96 × 57,759.34
  4. Step 4: Simplify right side
    103,066.75x = 8,215,569,692.56
  5. Step 5: Solve for x
    x = 8,215,569,692.56/103,066.75
  6. Step 6: Final answer
    x = 79,711.16

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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.