Home / 107,532.55-161,331.63-54,978.94

Finding the Fourth Proportional to 107,532.55, 161,331.63 and 54,978.94

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Solution

The fourth proportional to 107,532.55, 161,331.63 and 54,978.94 is: 82,485.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,532.55 : 161,331.63 = 54,978.94 : x
  2. Step 2: Convert to fraction form
    107,532.55/161,331.63 = 54,978.94/x
  3. Step 3: Cross multiply
    107,532.55x = 161,331.63 × 54,978.94
  4. Step 4: Simplify right side
    107,532.55x = 8,869,842,005.87
  5. Step 5: Solve for x
    x = 8,869,842,005.87/107,532.55
  6. Step 6: Final answer
    x = 82,485.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.