Home / 180,734.11-249,427.47-100,169.35

Finding the Fourth Proportional to 180,734.11, 249,427.47 and 100,169.35

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Solution

The fourth proportional to 180,734.11, 249,427.47 and 100,169.35 is: 138,241.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,734.11 : 249,427.47 = 100,169.35 : x
  2. Step 2: Convert to fraction form
    180,734.11/249,427.47 = 100,169.35/x
  3. Step 3: Cross multiply
    180,734.11x = 249,427.47 × 100,169.35
  4. Step 4: Simplify right side
    180,734.11x = 24,984,987,542.04
  5. Step 5: Solve for x
    x = 24,984,987,542.04/180,734.11
  6. Step 6: Final answer
    x = 138,241.68

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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.