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Finding the Fourth Proportional to 119,828.79, 179,743.25 and 40,943.79

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Solution

The fourth proportional to 119,828.79, 179,743.25 and 40,943.79 is: 61,415.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,828.79 : 179,743.25 = 40,943.79 : x
  2. Step 2: Convert to fraction form
    119,828.79/179,743.25 = 40,943.79/x
  3. Step 3: Cross multiply
    119,828.79x = 179,743.25 × 40,943.79
  4. Step 4: Simplify right side
    119,828.79x = 7,359,369,677.20
  5. Step 5: Solve for x
    x = 7,359,369,677.20/119,828.79
  6. Step 6: Final answer
    x = 61,415.71

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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.