Home / 166,139.88-249,249.18-66,305.64

Finding the Fourth Proportional to 166,139.88, 249,249.18 and 66,305.64

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Solution

The fourth proportional to 166,139.88, 249,249.18 and 66,305.64 is: 99,474.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,139.88 : 249,249.18 = 66,305.64 : x
  2. Step 2: Convert to fraction form
    166,139.88/249,249.18 = 66,305.64/x
  3. Step 3: Cross multiply
    166,139.88x = 249,249.18 × 66,305.64
  4. Step 4: Simplify right side
    166,139.88x = 16,526,626,399.38
  5. Step 5: Solve for x
    x = 16,526,626,399.38/166,139.88
  6. Step 6: Final answer
    x = 99,474.17

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1.5x scale

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.