Home / 143,212.68-197,629.56-79,548.84

Finding the Fourth Proportional to 143,212.68, 197,629.56 and 79,548.84

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Solution

The fourth proportional to 143,212.68, 197,629.56 and 79,548.84 is: 109,775.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,212.68 : 197,629.56 = 79,548.84 : x
  2. Step 2: Convert to fraction form
    143,212.68/197,629.56 = 79,548.84/x
  3. Step 3: Cross multiply
    143,212.68x = 197,629.56 × 79,548.84
  4. Step 4: Simplify right side
    143,212.68x = 15,721,202,247.71
  5. Step 5: Solve for x
    x = 15,721,202,247.71/143,212.68
  6. Step 6: Final answer
    x = 109,775.21

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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.