Home / 139,150.64-191,964.12-82,541.36

Finding the Fourth Proportional to 139,150.64, 191,964.12 and 82,541.36

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Solution

The fourth proportional to 139,150.64, 191,964.12 and 82,541.36 is: 113,869.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,150.64 : 191,964.12 = 82,541.36 : x
  2. Step 2: Convert to fraction form
    139,150.64/191,964.12 = 82,541.36/x
  3. Step 3: Cross multiply
    139,150.64x = 191,964.12 × 82,541.36
  4. Step 4: Simplify right side
    139,150.64x = 15,844,979,536.00
  5. Step 5: Solve for x
    x = 15,844,979,536.00/139,150.64
  6. Step 6: Final answer
    x = 113,869.25

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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.