Home / 149,289.20-206,016.02-81,307.37

Finding the Fourth Proportional to 149,289.20, 206,016.02 and 81,307.37

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Solution

The fourth proportional to 149,289.20, 206,016.02 and 81,307.37 is: 112,202.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,289.20 : 206,016.02 = 81,307.37 : x
  2. Step 2: Convert to fraction form
    149,289.20/206,016.02 = 81,307.37/x
  3. Step 3: Cross multiply
    149,289.20x = 206,016.02 × 81,307.37
  4. Step 4: Simplify right side
    149,289.20x = 16,750,619,327.45
  5. Step 5: Solve for x
    x = 16,750,619,327.45/149,289.20
  6. Step 6: Final answer
    x = 112,202.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.