Home / 135,865.06-187,499.66-75,435.71

Finding the Fourth Proportional to 135,865.06, 187,499.66 and 75,435.71

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Solution

The fourth proportional to 135,865.06, 187,499.66 and 75,435.71 is: 104,104.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,865.06 : 187,499.66 = 75,435.71 : x
  2. Step 2: Convert to fraction form
    135,865.06/187,499.66 = 75,435.71/x
  3. Step 3: Cross multiply
    135,865.06x = 187,499.66 × 75,435.71
  4. Step 4: Simplify right side
    135,865.06x = 14,144,168,662.18
  5. Step 5: Solve for x
    x = 14,144,168,662.18/135,865.06
  6. Step 6: Final answer
    x = 104,104.54

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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.