Home / 135,685.55-187,029.77-106,958.39

Finding the Fourth Proportional to 135,685.55, 187,029.77 and 106,958.39

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Solution

The fourth proportional to 135,685.55, 187,029.77 and 106,958.39 is: 147,432.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,685.55 : 187,029.77 = 106,958.39 : x
  2. Step 2: Convert to fraction form
    135,685.55/187,029.77 = 106,958.39/x
  3. Step 3: Cross multiply
    135,685.55x = 187,029.77 × 106,958.39
  4. Step 4: Simplify right side
    135,685.55x = 20,004,403,081.27
  5. Step 5: Solve for x
    x = 20,004,403,081.27/135,685.55
  6. Step 6: Final answer
    x = 147,432.08

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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.