Home / 117,918.57-162,728.75-67,607.85

Finding the Fourth Proportional to 117,918.57, 162,728.75 and 67,607.85

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Solution

The fourth proportional to 117,918.57, 162,728.75 and 67,607.85 is: 93,299.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,918.57 : 162,728.75 = 67,607.85 : x
  2. Step 2: Convert to fraction form
    117,918.57/162,728.75 = 67,607.85/x
  3. Step 3: Cross multiply
    117,918.57x = 162,728.75 × 67,607.85
  4. Step 4: Simplify right side
    117,918.57x = 11,001,740,582.65
  5. Step 5: Solve for x
    x = 11,001,740,582.65/117,918.57
  6. Step 6: Final answer
    x = 93,299.47

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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.