Home / 135,742.81-187,324.86-75,322.66

Finding the Fourth Proportional to 135,742.81, 187,324.86 and 75,322.66

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Solution

The fourth proportional to 135,742.81, 187,324.86 and 75,322.66 is: 103,945.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,742.81 : 187,324.86 = 75,322.66 : x
  2. Step 2: Convert to fraction form
    135,742.81/187,324.86 = 75,322.66/x
  3. Step 3: Cross multiply
    135,742.81x = 187,324.86 × 75,322.66
  4. Step 4: Simplify right side
    135,742.81x = 14,109,806,739.33
  5. Step 5: Solve for x
    x = 14,109,806,739.33/135,742.81
  6. Step 6: Final answer
    x = 103,945.15

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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.