Home / 119,768.98-165,239.46-76,772.18

Finding the Fourth Proportional to 119,768.98, 165,239.46 and 76,772.18

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Solution

The fourth proportional to 119,768.98, 165,239.46 and 76,772.18 is: 105,918.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,768.98 : 165,239.46 = 76,772.18 : x
  2. Step 2: Convert to fraction form
    119,768.98/165,239.46 = 76,772.18/x
  3. Step 3: Cross multiply
    119,768.98x = 165,239.46 × 76,772.18
  4. Step 4: Simplify right side
    119,768.98x = 12,685,793,979.32
  5. Step 5: Solve for x
    x = 12,685,793,979.32/119,768.98
  6. Step 6: Final answer
    x = 105,918.86

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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.