Home / 119,511.26-164,919.28-65,785.79

Finding the Fourth Proportional to 119,511.26, 164,919.28 and 65,785.79

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Solution

The fourth proportional to 119,511.26, 164,919.28 and 65,785.79 is: 90,780.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,511.26 : 164,919.28 = 65,785.79 : x
  2. Step 2: Convert to fraction form
    119,511.26/164,919.28 = 65,785.79/x
  3. Step 3: Cross multiply
    119,511.26x = 164,919.28 × 65,785.79
  4. Step 4: Simplify right side
    119,511.26x = 10,849,344,131.97
  5. Step 5: Solve for x
    x = 10,849,344,131.97/119,511.26
  6. Step 6: Final answer
    x = 90,780.93

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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.