Home / 104,815.82-144,666.32-66,619.87

Finding the Fourth Proportional to 104,815.82, 144,666.32 and 66,619.87

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Solution

The fourth proportional to 104,815.82, 144,666.32 and 66,619.87 is: 91,948.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,815.82 : 144,666.32 = 66,619.87 : x
  2. Step 2: Convert to fraction form
    104,815.82/144,666.32 = 66,619.87/x
  3. Step 3: Cross multiply
    104,815.82x = 144,666.32 × 66,619.87
  4. Step 4: Simplify right side
    104,815.82x = 9,637,650,737.01
  5. Step 5: Solve for x
    x = 9,637,650,737.01/104,815.82
  6. Step 6: Final answer
    x = 91,948.43

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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.