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Finding the Fourth Proportional to 146,189.71, 201,741.73 and 79,121.71

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Solution

The fourth proportional to 146,189.71, 201,741.73 and 79,121.71 is: 109,187.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,189.71 : 201,741.73 = 79,121.71 : x
  2. Step 2: Convert to fraction form
    146,189.71/201,741.73 = 79,121.71/x
  3. Step 3: Cross multiply
    146,189.71x = 201,741.73 × 79,121.71
  4. Step 4: Simplify right side
    146,189.71x = 15,962,150,655.96
  5. Step 5: Solve for x
    x = 15,962,150,655.96/146,189.71
  6. Step 6: Final answer
    x = 109,187.92

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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.