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Finding the Fourth Proportional to 107,580.80, 161,313.60 and 45,180.80

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Solution

The fourth proportional to 107,580.80, 161,313.60 and 45,180.80 is: 67,747.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,580.80 : 161,313.60 = 45,180.80 : x
  2. Step 2: Convert to fraction form
    107,580.80/161,313.60 = 45,180.80/x
  3. Step 3: Cross multiply
    107,580.80x = 161,313.60 × 45,180.80
  4. Step 4: Simplify right side
    107,580.80x = 7,288,277,498.88
  5. Step 5: Solve for x
    x = 7,288,277,498.88/107,580.80
  6. Step 6: Final answer
    x = 67,747.01

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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.