Home / 140,628.07-194,066.81-76,966.21

Finding the Fourth Proportional to 140,628.07, 194,066.81 and 76,966.21

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Solution

The fourth proportional to 140,628.07, 194,066.81 and 76,966.21 is: 106,213.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,628.07 : 194,066.81 = 76,966.21 : x
  2. Step 2: Convert to fraction form
    140,628.07/194,066.81 = 76,966.21/x
  3. Step 3: Cross multiply
    140,628.07x = 194,066.81 × 76,966.21
  4. Step 4: Simplify right side
    140,628.07x = 14,936,586,852.49
  5. Step 5: Solve for x
    x = 14,936,586,852.49/140,628.07
  6. Step 6: Final answer
    x = 106,213.41

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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.