Home / 110,867.60-166,301.40-75,438.20

Finding the Fourth Proportional to 110,867.60, 166,301.40 and 75,438.20

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Solution

The fourth proportional to 110,867.60, 166,301.40 and 75,438.20 is: 113,157.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,867.60 : 166,301.40 = 75,438.20 : x
  2. Step 2: Convert to fraction form
    110,867.60/166,301.40 = 75,438.20/x
  3. Step 3: Cross multiply
    110,867.60x = 166,301.40 × 75,438.20
  4. Step 4: Simplify right side
    110,867.60x = 12,545,478,273.48
  5. Step 5: Solve for x
    x = 12,545,478,273.48/110,867.60
  6. Step 6: Final answer
    x = 113,157.30

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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.