Home / 140,001.96-193,198.48-76,341

Finding the Fourth Proportional to 140,001.96, 193,198.48 and 76,341

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Solution

The fourth proportional to 140,001.96, 193,198.48 and 76,341 is: 105,348.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,001.96 : 193,198.48 = 76,341 : x
  2. Step 2: Convert to fraction form
    140,001.96/193,198.48 = 76,341/x
  3. Step 3: Cross multiply
    140,001.96x = 193,198.48 × 76,341
  4. Step 4: Simplify right side
    140,001.96x = 14,748,965,161.68
  5. Step 5: Solve for x
    x = 14,748,965,161.68/140,001.96
  6. Step 6: Final answer
    x = 105,348.28

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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.