Home / 115,930.80-174,155.40-111,207.60

Finding the Fourth Proportional to 115,930.80, 174,155.40 and 111,207.60

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Solution

The fourth proportional to 115,930.80, 174,155.40 and 111,207.60 is: 167,060.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,930.80 : 174,155.40 = 111,207.60 : x
  2. Step 2: Convert to fraction form
    115,930.80/174,155.40 = 111,207.60/x
  3. Step 3: Cross multiply
    115,930.80x = 174,155.40 × 111,207.60
  4. Step 4: Simplify right side
    115,930.80x = 19,367,404,061.04
  5. Step 5: Solve for x
    x = 19,367,404,061.04/115,930.80
  6. Step 6: Final answer
    x = 167,060.04

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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.