Home / 135,655.17-187,213.73-75,231.60

Finding the Fourth Proportional to 135,655.17, 187,213.73 and 75,231.60

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Solution

The fourth proportional to 135,655.17, 187,213.73 and 75,231.60 is: 103,824.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,655.17 : 187,213.73 = 75,231.60 : x
  2. Step 2: Convert to fraction form
    135,655.17/187,213.73 = 75,231.60/x
  3. Step 3: Cross multiply
    135,655.17x = 187,213.73 × 75,231.60
  4. Step 4: Simplify right side
    135,655.17x = 14,084,388,073.71
  5. Step 5: Solve for x
    x = 14,084,388,073.71/135,655.17
  6. Step 6: Final answer
    x = 103,824.93

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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.