Home / 107,865.20-161,759.40-48,729.20

Finding the Fourth Proportional to 107,865.20, 161,759.40 and 48,729.20

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Solution

The fourth proportional to 107,865.20, 161,759.40 and 48,729.20 is: 73,076.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,865.20 : 161,759.40 = 48,729.20 : x
  2. Step 2: Convert to fraction form
    107,865.20/161,759.40 = 48,729.20/x
  3. Step 3: Cross multiply
    107,865.20x = 161,759.40 × 48,729.20
  4. Step 4: Simplify right side
    107,865.20x = 7,882,406,154.48
  5. Step 5: Solve for x
    x = 7,882,406,154.48/107,865.20
  6. Step 6: Final answer
    x = 73,076.45

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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.