Home / 86,930.88-119,956.32-69,069.12

Finding the Fourth Proportional to 86,930.88, 119,956.32 and 69,069.12

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Solution

The fourth proportional to 86,930.88, 119,956.32 and 69,069.12 is: 95,308.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,930.88 : 119,956.32 = 69,069.12 : x
  2. Step 2: Convert to fraction form
    86,930.88/119,956.32 = 69,069.12/x
  3. Step 3: Cross multiply
    86,930.88x = 119,956.32 × 69,069.12
  4. Step 4: Simplify right side
    86,930.88x = 8,285,277,460.84
  5. Step 5: Solve for x
    x = 8,285,277,460.84/86,930.88
  6. Step 6: Final answer
    x = 95,308.80

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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.