Home / 143,033.20-197,386.24-79,371.12

Finding the Fourth Proportional to 143,033.20, 197,386.24 and 79,371.12

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Solution

The fourth proportional to 143,033.20, 197,386.24 and 79,371.12 is: 109,532.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,033.20 : 197,386.24 = 79,371.12 : x
  2. Step 2: Convert to fraction form
    143,033.20/197,386.24 = 79,371.12/x
  3. Step 3: Cross multiply
    143,033.20x = 197,386.24 × 79,371.12
  4. Step 4: Simplify right side
    143,033.20x = 15,666,766,941.39
  5. Step 5: Solve for x
    x = 15,666,766,941.39/143,033.20
  6. Step 6: Final answer
    x = 109,532.38

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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.