Home / 102,895.05-154,237.31-69,618.63

Finding the Fourth Proportional to 102,895.05, 154,237.31 and 69,618.63

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Solution

The fourth proportional to 102,895.05, 154,237.31 and 69,618.63 is: 104,356.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,895.05 : 154,237.31 = 69,618.63 : x
  2. Step 2: Convert to fraction form
    102,895.05/154,237.31 = 69,618.63/x
  3. Step 3: Cross multiply
    102,895.05x = 154,237.31 × 69,618.63
  4. Step 4: Simplify right side
    102,895.05x = 10,737,790,217.09
  5. Step 5: Solve for x
    x = 10,737,790,217.09/102,895.05
  6. Step 6: Final answer
    x = 104,356.72

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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.