Home / 180,704.21-249,379.73-100,131.53

Finding the Fourth Proportional to 180,704.21, 249,379.73 and 100,131.53

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Solution

The fourth proportional to 180,704.21, 249,379.73 and 100,131.53 is: 138,185.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,704.21 : 249,379.73 = 100,131.53 : x
  2. Step 2: Convert to fraction form
    180,704.21/249,379.73 = 100,131.53/x
  3. Step 3: Cross multiply
    180,704.21x = 249,379.73 × 100,131.53
  4. Step 4: Simplify right side
    180,704.21x = 24,970,774,789.67
  5. Step 5: Solve for x
    x = 24,970,774,789.67/180,704.21
  6. Step 6: Final answer
    x = 138,185.91

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1.5x scale

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.