Home / 118,072.65-177,147.25-70,680.36

Finding the Fourth Proportional to 118,072.65, 177,147.25 and 70,680.36

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Solution

The fourth proportional to 118,072.65, 177,147.25 and 70,680.36 is: 106,043.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,072.65 : 177,147.25 = 70,680.36 : x
  2. Step 2: Convert to fraction form
    118,072.65/177,147.25 = 70,680.36/x
  3. Step 3: Cross multiply
    118,072.65x = 177,147.25 × 70,680.36
  4. Step 4: Simplify right side
    118,072.65x = 12,520,832,288.19
  5. Step 5: Solve for x
    x = 12,520,832,288.19/118,072.65
  6. Step 6: Final answer
    x = 106,043.46

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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.