Home / 166,131.72-249,255.90-103,729.32

Finding the Fourth Proportional to 166,131.72, 249,255.90 and 103,729.32

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Solution

The fourth proportional to 166,131.72, 249,255.90 and 103,729.32 is: 155,630.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,131.72 : 249,255.90 = 103,729.32 : x
  2. Step 2: Convert to fraction form
    166,131.72/249,255.90 = 103,729.32/x
  3. Step 3: Cross multiply
    166,131.72x = 249,255.90 × 103,729.32
  4. Step 4: Simplify right side
    166,131.72x = 25,855,145,012.99
  5. Step 5: Solve for x
    x = 25,855,145,012.99/166,131.72
  6. Step 6: Final answer
    x = 155,630.39

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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.