Home / 111,998.36-154,550.40-61,697.36

Finding the Fourth Proportional to 111,998.36, 154,550.40 and 61,697.36

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Solution

The fourth proportional to 111,998.36, 154,550.40 and 61,697.36 is: 85,138.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,998.36 : 154,550.40 = 61,697.36 : x
  2. Step 2: Convert to fraction form
    111,998.36/154,550.40 = 61,697.36/x
  3. Step 3: Cross multiply
    111,998.36x = 154,550.40 × 61,697.36
  4. Step 4: Simplify right side
    111,998.36x = 9,535,351,666.94
  5. Step 5: Solve for x
    x = 9,535,351,666.94/111,998.36
  6. Step 6: Final answer
    x = 85,138.32

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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.