Home / 143,006.24-197,348.07-78,476.56

Finding the Fourth Proportional to 143,006.24, 197,348.07 and 78,476.56

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Solution

The fourth proportional to 143,006.24, 197,348.07 and 78,476.56 is: 108,297.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,006.24 : 197,348.07 = 78,476.56 : x
  2. Step 2: Convert to fraction form
    143,006.24/197,348.07 = 78,476.56/x
  3. Step 3: Cross multiply
    143,006.24x = 197,348.07 × 78,476.56
  4. Step 4: Simplify right side
    143,006.24x = 15,487,197,656.24
  5. Step 5: Solve for x
    x = 15,487,197,656.24/143,006.24
  6. Step 6: Final answer
    x = 108,297.36

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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.