Home / 166,121.40-249,218.55-53,806.80

Finding the Fourth Proportional to 166,121.40, 249,218.55 and 53,806.80

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Solution

The fourth proportional to 166,121.40, 249,218.55 and 53,806.80 is: 80,722.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,121.40 : 249,218.55 = 53,806.80 : x
  2. Step 2: Convert to fraction form
    166,121.40/249,218.55 = 53,806.80/x
  3. Step 3: Cross multiply
    166,121.40x = 249,218.55 × 53,806.80
  4. Step 4: Simplify right side
    166,121.40x = 13,409,652,676.14
  5. Step 5: Solve for x
    x = 13,409,652,676.14/166,121.40
  6. Step 6: Final answer
    x = 80,722.01

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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.