Home / 135,551.29-187,060.77-75,131.01

Finding the Fourth Proportional to 135,551.29, 187,060.77 and 75,131.01

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Solution

The fourth proportional to 135,551.29, 187,060.77 and 75,131.01 is: 103,680.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,551.29 : 187,060.77 = 75,131.01 : x
  2. Step 2: Convert to fraction form
    135,551.29/187,060.77 = 75,131.01/x
  3. Step 3: Cross multiply
    135,551.29x = 187,060.77 × 75,131.01
  4. Step 4: Simplify right side
    135,551.29x = 14,054,064,944.26
  5. Step 5: Solve for x
    x = 14,054,064,944.26/135,551.29
  6. Step 6: Final answer
    x = 103,680.79

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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.