Home / 143,092.54-197,460.66-78,560.20

Finding the Fourth Proportional to 143,092.54, 197,460.66 and 78,560.20

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Solution

The fourth proportional to 143,092.54, 197,460.66 and 78,560.20 is: 108,409.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,092.54 : 197,460.66 = 78,560.20 : x
  2. Step 2: Convert to fraction form
    143,092.54/197,460.66 = 78,560.20/x
  3. Step 3: Cross multiply
    143,092.54x = 197,460.66 × 78,560.20
  4. Step 4: Simplify right side
    143,092.54x = 15,512,548,941.73
  5. Step 5: Solve for x
    x = 15,512,548,941.73/143,092.54
  6. Step 6: Final answer
    x = 108,409.21

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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.