Home / 188,177.40-259,675.14-111,699.72

Finding the Fourth Proportional to 188,177.40, 259,675.14 and 111,699.72

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Solution

The fourth proportional to 188,177.40, 259,675.14 and 111,699.72 is: 154,139.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,177.40 : 259,675.14 = 111,699.72 : x
  2. Step 2: Convert to fraction form
    188,177.40/259,675.14 = 111,699.72/x
  3. Step 3: Cross multiply
    188,177.40x = 259,675.14 × 111,699.72
  4. Step 4: Simplify right side
    188,177.40x = 29,005,640,428.96
  5. Step 5: Solve for x
    x = 29,005,640,428.96/188,177.40
  6. Step 6: Final answer
    x = 154,139.87

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1.5x scale

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.