Home / 135,629.10-187,160.66-75,196.22

Finding the Fourth Proportional to 135,629.10, 187,160.66 and 75,196.22

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Solution

The fourth proportional to 135,629.10, 187,160.66 and 75,196.22 is: 103,766.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,629.10 : 187,160.66 = 75,196.22 : x
  2. Step 2: Convert to fraction form
    135,629.10/187,160.66 = 75,196.22/x
  3. Step 3: Cross multiply
    135,629.10x = 187,160.66 × 75,196.22
  4. Step 4: Simplify right side
    135,629.10x = 14,073,774,164.71
  5. Step 5: Solve for x
    x = 14,073,774,164.71/135,629.10
  6. Step 6: Final answer
    x = 103,766.63

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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.