Home / 135,905.09-187,555.25-75,476.00

Finding the Fourth Proportional to 135,905.09, 187,555.25 and 75,476.00

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Solution

The fourth proportional to 135,905.09, 187,555.25 and 75,476.00 is: 104,160.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,905.09 : 187,555.25 = 75,476.00 : x
  2. Step 2: Convert to fraction form
    135,905.09/187,555.25 = 75,476.00/x
  3. Step 3: Cross multiply
    135,905.09x = 187,555.25 × 75,476.00
  4. Step 4: Simplify right side
    135,905.09x = 14,155,918,733.84
  5. Step 5: Solve for x
    x = 14,155,918,733.84/135,905.09
  6. Step 6: Final answer
    x = 104,160.33

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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.