Home / 135,596.88-187,100.73-90,342.36

Finding the Fourth Proportional to 135,596.88, 187,100.73 and 90,342.36

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Solution

The fourth proportional to 135,596.88, 187,100.73 and 90,342.36 is: 124,657.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,596.88 : 187,100.73 = 90,342.36 : x
  2. Step 2: Convert to fraction form
    135,596.88/187,100.73 = 90,342.36/x
  3. Step 3: Cross multiply
    135,596.88x = 187,100.73 × 90,342.36
  4. Step 4: Simplify right side
    135,596.88x = 16,903,121,505.92
  5. Step 5: Solve for x
    x = 16,903,121,505.92/135,596.88
  6. Step 6: Final answer
    x = 124,657.16

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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.