Home / 130,886.73-180,618.66-79,984.61

Finding the Fourth Proportional to 130,886.73, 180,618.66 and 79,984.61

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Solution

The fourth proportional to 130,886.73, 180,618.66 and 79,984.61 is: 110,375.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,886.73 : 180,618.66 = 79,984.61 : x
  2. Step 2: Convert to fraction form
    130,886.73/180,618.66 = 79,984.61/x
  3. Step 3: Cross multiply
    130,886.73x = 180,618.66 × 79,984.61
  4. Step 4: Simplify right side
    130,886.73x = 14,446,713,078.82
  5. Step 5: Solve for x
    x = 14,446,713,078.82/130,886.73
  6. Step 6: Final answer
    x = 110,375.69

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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.