Home / 111,785.36-154,327.56-74,110.64

Finding the Fourth Proportional to 111,785.36, 154,327.56 and 74,110.64

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Solution

The fourth proportional to 111,785.36, 154,327.56 and 74,110.64 is: 102,314.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,785.36 : 154,327.56 = 74,110.64 : x
  2. Step 2: Convert to fraction form
    111,785.36/154,327.56 = 74,110.64/x
  3. Step 3: Cross multiply
    111,785.36x = 154,327.56 × 74,110.64
  4. Step 4: Simplify right side
    111,785.36x = 11,437,314,241.24
  5. Step 5: Solve for x
    x = 11,437,314,241.24/111,785.36
  6. Step 6: Final answer
    x = 102,314.96

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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.