Home / 135,855.06-187,486.02-75,426.54

Finding the Fourth Proportional to 135,855.06, 187,486.02 and 75,426.54

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Solution

The fourth proportional to 135,855.06, 187,486.02 and 75,426.54 is: 104,091.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,855.06 : 187,486.02 = 75,426.54 : x
  2. Step 2: Convert to fraction form
    135,855.06/187,486.02 = 75,426.54/x
  3. Step 3: Cross multiply
    135,855.06x = 187,486.02 × 75,426.54
  4. Step 4: Simplify right side
    135,855.06x = 14,141,421,786.97
  5. Step 5: Solve for x
    x = 14,141,421,786.97/135,855.06
  6. Step 6: Final answer
    x = 104,091.98

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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.