Home / 180,991.25-249,781.62-100,434.02

Finding the Fourth Proportional to 180,991.25, 249,781.62 and 100,434.02

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Solution

The fourth proportional to 180,991.25, 249,781.62 and 100,434.02 is: 138,606.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,991.25 : 249,781.62 = 100,434.02 : x
  2. Step 2: Convert to fraction form
    180,991.25/249,781.62 = 100,434.02/x
  3. Step 3: Cross multiply
    180,991.25x = 249,781.62 × 100,434.02
  4. Step 4: Simplify right side
    180,991.25x = 25,086,570,969.80
  5. Step 5: Solve for x
    x = 25,086,570,969.80/180,991.25
  6. Step 6: Final answer
    x = 138,606.54

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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.