Home / 136,292.12-188,081.66-75,861.80

Finding the Fourth Proportional to 136,292.12, 188,081.66 and 75,861.80

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Solution

The fourth proportional to 136,292.12, 188,081.66 and 75,861.80 is: 104,688.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,292.12 : 188,081.66 = 75,861.80 : x
  2. Step 2: Convert to fraction form
    136,292.12/188,081.66 = 75,861.80/x
  3. Step 3: Cross multiply
    136,292.12x = 188,081.66 × 75,861.80
  4. Step 4: Simplify right side
    136,292.12x = 14,268,213,274.59
  5. Step 5: Solve for x
    x = 14,268,213,274.59/136,292.12
  6. Step 6: Final answer
    x = 104,688.47

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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.