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Finding the Fourth Proportional to 119,304.79, 178,567.77 and 87,706.48

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Solution

The fourth proportional to 119,304.79, 178,567.77 and 87,706.48 is: 131,273.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,304.79 : 178,567.77 = 87,706.48 : x
  2. Step 2: Convert to fraction form
    119,304.79/178,567.77 = 87,706.48/x
  3. Step 3: Cross multiply
    119,304.79x = 178,567.77 × 87,706.48
  4. Step 4: Simplify right side
    119,304.79x = 15,661,550,109.62
  5. Step 5: Solve for x
    x = 15,661,550,109.62/119,304.79
  6. Step 6: Final answer
    x = 131,273.44

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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.