Home / 143,182.93-197,592.90-79,520.73

Finding the Fourth Proportional to 143,182.93, 197,592.90 and 79,520.73

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Solution

The fourth proportional to 143,182.93, 197,592.90 and 79,520.73 is: 109,738.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,182.93 : 197,592.90 = 79,520.73 : x
  2. Step 2: Convert to fraction form
    143,182.93/197,592.90 = 79,520.73/x
  3. Step 3: Cross multiply
    143,182.93x = 197,592.90 × 79,520.73
  4. Step 4: Simplify right side
    143,182.93x = 15,712,731,650.82
  5. Step 5: Solve for x
    x = 15,712,731,650.82/143,182.93
  6. Step 6: Final answer
    x = 109,738.86

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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.