Home / 102,912.16-154,442.10-43,789.36

Finding the Fourth Proportional to 102,912.16, 154,442.10 and 43,789.36

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Solution

The fourth proportional to 102,912.16, 154,442.10 and 43,789.36 is: 65,715.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,912.16 : 154,442.10 = 43,789.36 : x
  2. Step 2: Convert to fraction form
    102,912.16/154,442.10 = 43,789.36/x
  3. Step 3: Cross multiply
    102,912.16x = 154,442.10 × 43,789.36
  4. Step 4: Simplify right side
    102,912.16x = 6,762,920,716.06
  5. Step 5: Solve for x
    x = 6,762,920,716.06/102,912.16
  6. Step 6: Final answer
    x = 65,715.47

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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.