Home / 135,736.54-187,316.58-79,158.84

Finding the Fourth Proportional to 135,736.54, 187,316.58 and 79,158.84

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Solution

The fourth proportional to 135,736.54, 187,316.58 and 79,158.84 is: 109,239.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,736.54 : 187,316.58 = 79,158.84 : x
  2. Step 2: Convert to fraction form
    135,736.54/187,316.58 = 79,158.84/x
  3. Step 3: Cross multiply
    135,736.54x = 187,316.58 × 79,158.84
  4. Step 4: Simplify right side
    135,736.54x = 14,827,763,185.57
  5. Step 5: Solve for x
    x = 14,827,763,185.57/135,736.54
  6. Step 6: Final answer
    x = 109,239.29

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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.