Home / 180,919.87-249,682.67-100,362.63

Finding the Fourth Proportional to 180,919.87, 249,682.67 and 100,362.63

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Solution

The fourth proportional to 180,919.87, 249,682.67 and 100,362.63 is: 138,507.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,919.87 : 249,682.67 = 100,362.63 : x
  2. Step 2: Convert to fraction form
    180,919.87/249,682.67 = 100,362.63/x
  3. Step 3: Cross multiply
    180,919.87x = 249,682.67 × 100,362.63
  4. Step 4: Simplify right side
    180,919.87x = 25,058,809,426.62
  5. Step 5: Solve for x
    x = 25,058,809,426.62/180,919.87
  6. Step 6: Final answer
    x = 138,507.78

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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.