Home / 166,041.40-229,139.76-90,589.90

Finding the Fourth Proportional to 166,041.40, 229,139.76 and 90,589.90

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Solution

The fourth proportional to 166,041.40, 229,139.76 and 90,589.90 is: 125,015.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,041.40 : 229,139.76 = 90,589.90 : x
  2. Step 2: Convert to fraction form
    166,041.40/229,139.76 = 90,589.90/x
  3. Step 3: Cross multiply
    166,041.40x = 229,139.76 × 90,589.90
  4. Step 4: Simplify right side
    166,041.40x = 20,757,747,944.42
  5. Step 5: Solve for x
    x = 20,757,747,944.42/166,041.40
  6. Step 6: Final answer
    x = 125,015.50

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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.