Home / 168,121.43-232,000.59-91,638.84

Finding the Fourth Proportional to 168,121.43, 232,000.59 and 91,638.84

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Solution

The fourth proportional to 168,121.43, 232,000.59 and 91,638.84 is: 126,457.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,121.43 : 232,000.59 = 91,638.84 : x
  2. Step 2: Convert to fraction form
    168,121.43/232,000.59 = 91,638.84/x
  3. Step 3: Cross multiply
    168,121.43x = 232,000.59 × 91,638.84
  4. Step 4: Simplify right side
    168,121.43x = 21,260,264,717.82
  5. Step 5: Solve for x
    x = 21,260,264,717.82/168,121.43
  6. Step 6: Final answer
    x = 126,457.79

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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.