Home / 103,128.53-154,700.89-43,964.64

Finding the Fourth Proportional to 103,128.53, 154,700.89 and 43,964.64

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Solution

The fourth proportional to 103,128.53, 154,700.89 and 43,964.64 is: 65,950.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,128.53 : 154,700.89 = 43,964.64 : x
  2. Step 2: Convert to fraction form
    103,128.53/154,700.89 = 43,964.64/x
  3. Step 3: Cross multiply
    103,128.53x = 154,700.89 × 43,964.64
  4. Step 4: Simplify right side
    103,128.53x = 6,801,368,826.62
  5. Step 5: Solve for x
    x = 6,801,368,826.62/103,128.53
  6. Step 6: Final answer
    x = 65,950.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.