Home / 107,502.40-161,176.80-48,289.60

Finding the Fourth Proportional to 107,502.40, 161,176.80 and 48,289.60

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Solution

The fourth proportional to 107,502.40, 161,176.80 and 48,289.60 is: 72,399.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,502.40 : 161,176.80 = 48,289.60 : x
  2. Step 2: Convert to fraction form
    107,502.40/161,176.80 = 48,289.60/x
  3. Step 3: Cross multiply
    107,502.40x = 161,176.80 × 48,289.60
  4. Step 4: Simplify right side
    107,502.40x = 7,783,163,201.28
  5. Step 5: Solve for x
    x = 7,783,163,201.28/107,502.40
  6. Step 6: Final answer
    x = 72,399.90

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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.