Home / 140,636.14-194,010.75-86,901.82

Finding the Fourth Proportional to 140,636.14, 194,010.75 and 86,901.82

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Solution

The fourth proportional to 140,636.14, 194,010.75 and 86,901.82 is: 119,883.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,636.14 : 194,010.75 = 86,901.82 : x
  2. Step 2: Convert to fraction form
    140,636.14/194,010.75 = 86,901.82/x
  3. Step 3: Cross multiply
    140,636.14x = 194,010.75 × 86,901.82
  4. Step 4: Simplify right side
    140,636.14x = 16,859,887,274.57
  5. Step 5: Solve for x
    x = 16,859,887,274.57/140,636.14
  6. Step 6: Final answer
    x = 119,883.03

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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.