Home / 131,896.89-182,021.09-80,937.77

Finding the Fourth Proportional to 131,896.89, 182,021.09 and 80,937.77

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Solution

The fourth proportional to 131,896.89, 182,021.09 and 80,937.77 is: 111,696.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,896.89 : 182,021.09 = 80,937.77 : x
  2. Step 2: Convert to fraction form
    131,896.89/182,021.09 = 80,937.77/x
  3. Step 3: Cross multiply
    131,896.89x = 182,021.09 × 80,937.77
  4. Step 4: Simplify right side
    131,896.89x = 14,732,381,117.57
  5. Step 5: Solve for x
    x = 14,732,381,117.57/131,896.89
  6. Step 6: Final answer
    x = 111,696.20

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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.