Home / 111,921.41-154,451.26-61,620.41

Finding the Fourth Proportional to 111,921.41, 154,451.26 and 61,620.41

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Solution

The fourth proportional to 111,921.41, 154,451.26 and 61,620.41 is: 85,036.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,921.41 : 154,451.26 = 61,620.41 : x
  2. Step 2: Convert to fraction form
    111,921.41/154,451.26 = 61,620.41/x
  3. Step 3: Cross multiply
    111,921.41x = 154,451.26 × 61,620.41
  4. Step 4: Simplify right side
    111,921.41x = 9,517,349,966.22
  5. Step 5: Solve for x
    x = 9,517,349,966.22/111,921.41
  6. Step 6: Final answer
    x = 85,036.01

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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.