Home / 140,213.53-193,493.67-76,551.33

Finding the Fourth Proportional to 140,213.53, 193,493.67 and 76,551.33

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Solution

The fourth proportional to 140,213.53, 193,493.67 and 76,551.33 is: 105,640.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,213.53 : 193,493.67 = 76,551.33 : x
  2. Step 2: Convert to fraction form
    140,213.53/193,493.67 = 76,551.33/x
  3. Step 3: Cross multiply
    140,213.53x = 193,493.67 × 76,551.33
  4. Step 4: Simplify right side
    140,213.53x = 14,812,196,817.61
  5. Step 5: Solve for x
    x = 14,812,196,817.61/140,213.53
  6. Step 6: Final answer
    x = 105,640.28

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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.