Home / 107,212.72-147,905.04-66,936.46

Finding the Fourth Proportional to 107,212.72, 147,905.04 and 66,936.46

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Solution

The fourth proportional to 107,212.72, 147,905.04 and 66,936.46 is: 92,342.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,212.72 : 147,905.04 = 66,936.46 : x
  2. Step 2: Convert to fraction form
    107,212.72/147,905.04 = 66,936.46/x
  3. Step 3: Cross multiply
    107,212.72x = 147,905.04 × 66,936.46
  4. Step 4: Simplify right side
    107,212.72x = 9,900,239,793.76
  5. Step 5: Solve for x
    x = 9,900,239,793.76/107,212.72
  6. Step 6: Final answer
    x = 92,342.03

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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.