Home / 131,097.29-180,928.14-80,139.85

Finding the Fourth Proportional to 131,097.29, 180,928.14 and 80,139.85

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Solution

The fourth proportional to 131,097.29, 180,928.14 and 80,139.85 is: 110,601.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,097.29 : 180,928.14 = 80,139.85 : x
  2. Step 2: Convert to fraction form
    131,097.29/180,928.14 = 80,139.85/x
  3. Step 3: Cross multiply
    131,097.29x = 180,928.14 × 80,139.85
  4. Step 4: Simplify right side
    131,097.29x = 14,499,553,548.06
  5. Step 5: Solve for x
    x = 14,499,553,548.06/131,097.29
  6. Step 6: Final answer
    x = 110,601.47

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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.