Home / 161,876.16-242,846.88-68,381.76

Finding the Fourth Proportional to 161,876.16, 242,846.88 and 68,381.76

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Solution

The fourth proportional to 161,876.16, 242,846.88 and 68,381.76 is: 102,586.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,876.16 : 242,846.88 = 68,381.76 : x
  2. Step 2: Convert to fraction form
    161,876.16/242,846.88 = 68,381.76/x
  3. Step 3: Cross multiply
    161,876.16x = 242,846.88 × 68,381.76
  4. Step 4: Simplify right side
    161,876.16x = 16,606,297,064.91
  5. Step 5: Solve for x
    x = 16,606,297,064.91/161,876.16
  6. Step 6: Final answer
    x = 102,586.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.