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Finding the Fourth Proportional to 119,880.69, 165,459.56 and 68,929.07

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Solution

The fourth proportional to 119,880.69, 165,459.56 and 68,929.07 is: 95,136.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,880.69 : 165,459.56 = 68,929.07 : x
  2. Step 2: Convert to fraction form
    119,880.69/165,459.56 = 68,929.07/x
  3. Step 3: Cross multiply
    119,880.69x = 165,459.56 × 68,929.07
  4. Step 4: Simplify right side
    119,880.69x = 11,404,972,421.47
  5. Step 5: Solve for x
    x = 11,404,972,421.47/119,880.69
  6. Step 6: Final answer
    x = 95,136.03

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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.