Home / 131,020.10-180,806.64-73,659.66

Finding the Fourth Proportional to 131,020.10, 180,806.64 and 73,659.66

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Solution

The fourth proportional to 131,020.10, 180,806.64 and 73,659.66 is: 101,649.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,020.10 : 180,806.64 = 73,659.66 : x
  2. Step 2: Convert to fraction form
    131,020.10/180,806.64 = 73,659.66/x
  3. Step 3: Cross multiply
    131,020.10x = 180,806.64 × 73,659.66
  4. Step 4: Simplify right side
    131,020.10x = 13,318,156,029.94
  5. Step 5: Solve for x
    x = 13,318,156,029.94/131,020.10
  6. Step 6: Final answer
    x = 101,649.72

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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.