Home / 135,896.40-187,538.22-79,296.84

Finding the Fourth Proportional to 135,896.40, 187,538.22 and 79,296.84

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Solution

The fourth proportional to 135,896.40, 187,538.22 and 79,296.84 is: 109,430.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,896.40 : 187,538.22 = 79,296.84 : x
  2. Step 2: Convert to fraction form
    135,896.40/187,538.22 = 79,296.84/x
  3. Step 3: Cross multiply
    135,896.40x = 187,538.22 × 79,296.84
  4. Step 4: Simplify right side
    135,896.40x = 14,871,188,225.22
  5. Step 5: Solve for x
    x = 14,871,188,225.22/135,896.40
  6. Step 6: Final answer
    x = 109,430.33

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1.5x scale

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.