Home / 118,270.30-177,175.65-105,017.08

Finding the Fourth Proportional to 118,270.30, 177,175.65 and 105,017.08

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Solution

The fourth proportional to 118,270.30, 177,175.65 and 105,017.08 is: 157,321.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,270.30 : 177,175.65 = 105,017.08 : x
  2. Step 2: Convert to fraction form
    118,270.30/177,175.65 = 105,017.08/x
  3. Step 3: Cross multiply
    118,270.30x = 177,175.65 × 105,017.08
  4. Step 4: Simplify right side
    118,270.30x = 18,606,469,410.10
  5. Step 5: Solve for x
    x = 18,606,469,410.10/118,270.30
  6. Step 6: Final answer
    x = 157,321.57

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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.