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Finding the Fourth Proportional to 119,561.58, 179,096.31 and 86,348.34

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Solution

The fourth proportional to 119,561.58, 179,096.31 and 86,348.34 is: 129,344.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,561.58 : 179,096.31 = 86,348.34 : x
  2. Step 2: Convert to fraction form
    119,561.58/179,096.31 = 86,348.34/x
  3. Step 3: Cross multiply
    119,561.58x = 179,096.31 × 86,348.34
  4. Step 4: Simplify right side
    119,561.58x = 15,464,669,068.63
  5. Step 5: Solve for x
    x = 15,464,669,068.63/119,561.58
  6. Step 6: Final answer
    x = 129,344.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.