Home / 168,409.31-232,399.04-100,391.18

Finding the Fourth Proportional to 168,409.31, 232,399.04 and 100,391.18

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Solution

The fourth proportional to 168,409.31, 232,399.04 and 100,391.18 is: 138,536.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,409.31 : 232,399.04 = 100,391.18 : x
  2. Step 2: Convert to fraction form
    168,409.31/232,399.04 = 100,391.18/x
  3. Step 3: Cross multiply
    168,409.31x = 232,399.04 × 100,391.18
  4. Step 4: Simplify right side
    168,409.31x = 23,330,812,192.52
  5. Step 5: Solve for x
    x = 23,330,812,192.52/168,409.31
  6. Step 6: Final answer
    x = 138,536.36

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1.5x scale

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.