Home / 124,869.12-172,513.44-104,694.72

Finding the Fourth Proportional to 124,869.12, 172,513.44 and 104,694.72

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Solution

The fourth proportional to 124,869.12, 172,513.44 and 104,694.72 is: 144,641.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,869.12 : 172,513.44 = 104,694.72 : x
  2. Step 2: Convert to fraction form
    124,869.12/172,513.44 = 104,694.72/x
  3. Step 3: Cross multiply
    124,869.12x = 172,513.44 × 104,694.72
  4. Step 4: Simplify right side
    124,869.12x = 18,061,246,297.04
  5. Step 5: Solve for x
    x = 18,061,246,297.04/124,869.12
  6. Step 6: Final answer
    x = 144,641.42

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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.