Home / 86,984.07-119,771.10-76,167.06

Finding the Fourth Proportional to 86,984.07, 119,771.10 and 76,167.06

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Solution

The fourth proportional to 86,984.07, 119,771.10 and 76,167.06 is: 104,876.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,984.07 : 119,771.10 = 76,167.06 : x
  2. Step 2: Convert to fraction form
    86,984.07/119,771.10 = 76,167.06/x
  3. Step 3: Cross multiply
    86,984.07x = 119,771.10 × 76,167.06
  4. Step 4: Simplify right side
    86,984.07x = 9,122,612,559.97
  5. Step 5: Solve for x
    x = 9,122,612,559.97/86,984.07
  6. Step 6: Final answer
    x = 104,876.82

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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.