Home / 180,906.14-249,665.40-100,359.60

Finding the Fourth Proportional to 180,906.14, 249,665.40 and 100,359.60

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Solution

The fourth proportional to 180,906.14, 249,665.40 and 100,359.60 is: 138,504.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,906.14 : 249,665.40 = 100,359.60 : x
  2. Step 2: Convert to fraction form
    180,906.14/249,665.40 = 100,359.60/x
  3. Step 3: Cross multiply
    180,906.14x = 249,665.40 × 100,359.60
  4. Step 4: Simplify right side
    180,906.14x = 25,056,319,677.84
  5. Step 5: Solve for x
    x = 25,056,319,677.84/180,906.14
  6. Step 6: Final answer
    x = 138,504.53

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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.