Home / 136,257.75-188,035.70-76,641.75

Finding the Fourth Proportional to 136,257.75, 188,035.70 and 76,641.75

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Solution

The fourth proportional to 136,257.75, 188,035.70 and 76,641.75 is: 105,765.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,257.75 : 188,035.70 = 76,641.75 : x
  2. Step 2: Convert to fraction form
    136,257.75/188,035.70 = 76,641.75/x
  3. Step 3: Cross multiply
    136,257.75x = 188,035.70 × 76,641.75
  4. Step 4: Simplify right side
    136,257.75x = 14,411,384,727.27
  5. Step 5: Solve for x
    x = 14,411,384,727.27/136,257.75
  6. Step 6: Final answer
    x = 105,765.62

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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.