Home / 187,870.12-259,299.90-172,738.85

Finding the Fourth Proportional to 187,870.12, 259,299.90 and 172,738.85

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Solution

The fourth proportional to 187,870.12, 259,299.90 and 172,738.85 is: 238,415.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,870.12 : 259,299.90 = 172,738.85 : x
  2. Step 2: Convert to fraction form
    187,870.12/259,299.90 = 172,738.85/x
  3. Step 3: Cross multiply
    187,870.12x = 259,299.90 × 172,738.85
  4. Step 4: Simplify right side
    187,870.12x = 44,791,165,234.62
  5. Step 5: Solve for x
    x = 44,791,165,234.62/187,870.12
  6. Step 6: Final answer
    x = 238,415.59

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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.