Home / 107,390.40-161,008.80-48,177.60

Finding the Fourth Proportional to 107,390.40, 161,008.80 and 48,177.60

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Solution

The fourth proportional to 107,390.40, 161,008.80 and 48,177.60 is: 72,231.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,390.40 : 161,008.80 = 48,177.60 : x
  2. Step 2: Convert to fraction form
    107,390.40/161,008.80 = 48,177.60/x
  3. Step 3: Cross multiply
    107,390.40x = 161,008.80 × 48,177.60
  4. Step 4: Simplify right side
    107,390.40x = 7,757,017,562.88
  5. Step 5: Solve for x
    x = 7,757,017,562.88/107,390.40
  6. Step 6: Final answer
    x = 72,231.95

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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.