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Finding the Fourth Proportional to 180,745.68, 249,422.25 and 100,174.58

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Solution

The fourth proportional to 180,745.68, 249,422.25 and 100,174.58 is: 138,237.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,745.68 : 249,422.25 = 100,174.58 : x
  2. Step 2: Convert to fraction form
    180,745.68/249,422.25 = 100,174.58/x
  3. Step 3: Cross multiply
    180,745.68x = 249,422.25 × 100,174.58
  4. Step 4: Simplify right side
    180,745.68x = 24,985,769,136.41
  5. Step 5: Solve for x
    x = 24,985,769,136.41/180,745.68
  6. Step 6: Final answer
    x = 138,237.16

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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.