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Finding the Fourth Proportional to 180,873.53, 249,620.43 and 100,327.07

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Solution

The fourth proportional to 180,873.53, 249,620.43 and 100,327.07 is: 138,459.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,873.53 : 249,620.43 = 100,327.07 : x
  2. Step 2: Convert to fraction form
    180,873.53/249,620.43 = 100,327.07/x
  3. Step 3: Cross multiply
    180,873.53x = 249,620.43 × 100,327.07
  4. Step 4: Simplify right side
    180,873.53x = 25,043,685,105.94
  5. Step 5: Solve for x
    x = 25,043,685,105.94/180,873.53
  6. Step 6: Final answer
    x = 138,459.65

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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.